The Dark Pictures: Man of Medan – All Collectible Locations (Secrets, Pictures)

The Dark Pictures Anthology: Man of Medan has 63 Collectible Locations (50 Secrets, 6 Black Framed Pictures, 6 White Framed Pictures, 1 Gold Image). Finding all Collectibles unlocks the following 5 trophies and achievements:

• For a dollar he told me his secrets  – Found 25 Secrets!
• Quite a lot of deaths that night  – Found all of the black framed Pictures
• Possible Futures  – Found all of the white framed Pictures
• Secrets! Lies! Conspiracies, man!  – Found all Secrets!
• Ghost ships are just a myth, right?  – Found all Pictures

It’s important to note that some Collectibles are only available in Shared Story Mode (Online Co-Op) or through the Curator’s Cut Mode (pre-order bonus):

• In Chapter “Glamor” Girl: Secrets #15, #31, #17
• Chapter “Matters of the Heart”: Secrets #46, #12, #33

Everything else is found in Theatrical Cut Mode (Default Solo Mode).

Because there is no matchmaking online and you can’t see what the second player does, you’re going to need an online friend to help you out. The good news is that it counts the collectibles for both players. So if the joining player finds them, the hosting player doesn’t have to find them again and vice versa. The other collectibles can be found solo.

After finishing your first playthrough in any given mode, you unlock chapter select for that mode. This way you can jump back and collect anything you have missed. It saves collectibles instantly after picking them up and you can quit out to the main menu right away, no need to finish the chapter. When using chapter select, load your finished playthrough save and always choose “New Save” and NEVER “Overwrite”. Just save in a new slot. If you overwrite the save with your finished story you can no longer use chapter select! If in doubt, back up the save game manually beforehand (PS4 Settings > Application Saved Data Management).

Some Chapters lock out each other, depending on choices you made. This means some chapters you will never get to play on your playthrough and you have to do another partial playthrough (via chapter select) to make different choices and get new chapters and scenarios with different collectibles. This guide will walk you through the collectibles in every chapter.

You can see which collectibles you have found and which are missing in the Main Menu under “Collections”. Then you can refer to the missing collectible in the guide below. For easier tracking the objective is also included, which you can see when pausing the game.

Important: This guide is based on Theatrical Cut Mode. Unless otherwise stated (Secrets #15, #31, #17, #46, #12, #33) it is recommended you play in Theatrical Mode.

Other helpful Guides and Tips:

• The Dark Pictures Anthology: Man of Medan Walkthrough (Everyone Survives)
• The Dark Pictures Anthology: Man of Medan Trophy Guide & Roadmap

Chapter: Chinese Market

NO COLLECTIBLES IN THIS CHAPTER!

Chapter: The Duke

NO COLLECTIBLES IN THIS CHAPTER!

Chapter: Wreck

[White Framed Picture #2: High and Dry] – Objective: Wait for Julia to finish preparing the tanks
As Alex: When you are walking around the boat for the first time as Alex, you need to go into the cabin at the front of the ship. In there, on the well next to the door you enter from, is a white picture you can interact with.

Chapter: Dive

NO COLLECTIBLES IN THIS CHAPTER!

Chapter: Uninvited Guests

[Black Framed Picture #2: Cut and Run] – Objective: Manage the Boat while the others dive
As Fliss: When you are walking around as Fliss for the first time, open her room at the front of the ship. The white framed picture is in there. Only she can access it (if you tried to open the door before as Alex it would’ve been locked but now that are you playing Fliss her room is unlocked).

[Black Framed Picture #1: Devil and the Deep] – Objective: Explore the B-29 Wreckage
As Julia: When you are diving as Julia, as soon as you gain control of her, you can find this black image from location on the left side in front of you (before swimming through the first “door”).

[Secret #30: Flight Plan] – Objective: Explore the B-29 Wreckage
[EASY TO MISS – Requires specific dialogue choice and successful QTE button press]
As Julia: When you are diving as Julia, after finding the black framed picture swim through the door and there will be a button prompt above you to investigate a long tube. You must choose dialogue FLIPPANT “Live a little” to swim into this tube, then press the button QTE correctly to grab the paper in the tube. Now turn the paper around to find a secret collectible on its back.

[Secret #49: Anti-Aircraft Shell] – Objective: Explore the B-29 Wreckage
As Julia: When you are diving as Julia, you can find a bullet sticking in a wall on the right side of the underwater wreckage. This is in the corridor just after our last collectible.

[Secret #40: Missing Lifeboat] – Objective: Explore the B-29 Wreckage
As Julia: Same corridor as our last secret, check the left side of the corridor for some stretchers where a lifeboat is seemingly missing.

Chapter: Ghost Story

[Secret #20: Co-Pilot Badge] – Objective: Get the NavPad
[Easy to Miss – This will only be available if you picked up the camera in “Chapter: Wreck” before the dive]
[BUGGED since patch 1.01 – This collectible is known to be bugged since patch 1.01. It doesn’t register in the secrets tab for some players, has like a 20% chance to register and 80% chance to be bugged. If you have the disc version you can stay disconnected from PSN until you get this, so that the game can’t download patches and stays at version 1.00. With patch installed, a possible workaround is to quit the chapter, then close the game application, reboot the game, load up your finished story save for chapter select, restart it in chapter select. Pick item up again, if it doesn’t register repeat a few more times until it does. It can be really delayed and in some cases only registers after returning to the main menu. Another way that worked for many players is if it bugged with Julia to pick it up in Curator Cut as Brad or in Shared Story as Brad, but it can be bugged with either character]
As Julia/Brad: After returning from the plane wreck dive, the friends will sit down and either Julia or Brad will be tasked with grabbing the navigator’s pad. When you walk around the boat, be sure to pick up the dive camera on the outer deck. Click through all pictures that Alex took underwater, one of them is the badge of the co-pilot that was sitting on a chair in front of the cockpit. This badge picture counts as a secret, it reveals from which airbase the pilot was from. Beware there is a hidden timer during this section, if you take too long it skips to the next cutscene!
*Special thanks to Shanice for this one

Chapter: Intrusion

IMPORTANT: Brad must stay undetected during this chapter so he is still hidden on the boat later for chapter “Finding Friends”. To do this, during Chapter “Intrusion” don’t have Conrad argue with the pirate that escorts him back on the boat after he takes a beating from Olson (pirate leader). If Conrad starts a fight inside the boat, they will find Brad. If Conrad follows the instructions of the pirates, Brad will stay undetected (which is what we want). So pay close attention during this chapter that Brad is not detected!

NO COLLECTIBLES IN THIS CHAPTER!

Chapter: Storm

NO COLLECTIBLES IN THIS CHAPTER!

Chapter: Abandoned Ship

[Secret #26: Guard Duty Note] – Objective: Follow the Kidnappers
As Conrad/Fliss (if Conrad escaped on Speedboat you’ll play as Fliss): After arriving on the ghost ship, you need to take a long walk with the pirates. Just after you see one of the pirates (Danny) looting some lockers on the left of the corridor and Alex saying “Oh Shit”, there’s a letter in this corridor that you can pick up from some barrels. Remember to turn it around to unlock the secret. This is BEFORE the pirates lock you into a room.

Chapter: Trapped

[Secret #44: 1947 Newspaper] – Objective: Look for a Way to Escape
As Conrad/Fliss: This is after the pirates lock you into a room. While locked in that room (with the rest of your crew), you can find a newspaper on the center table in front of where you spawn after the cutscene.

[Secret #28: Private Miller’s Letter] – Objective: Look for a Way to Escape
As Conrad/Fliss: same room as last secret. There’s a sheet of paper on the desk Julia is sitting on. Pick up the paper and turn it around (press R2 / RT to look at it and the right stick to turn it around). Once you look at the back of the paper it unlocks the secret.

Chapter: An Escape

[Secret #14: Guard Duty Roster] – Objective: Find a Way out of the Ship
As Conrad/Alex (playing as Alex if Conrad escaped on Speedboat): After escaping from the room the previous two secrets were in, you’ll find a document in the first room to your left. Turn the document around just like you did with the previous piece of paper to unlock this secret collectible.

[Secret #45: Private Reed’s Letter] – Objective: Find a Way out of the Ship
As Conrad/Alex (playing as Alex if Conrad escaped on Speedboat): This is really close to the last collectible, at the end of the same corridor. When you reach the end of the corridor, where Julia will be waiting to the right side of a door, you need to take a left turn to enter the restroom. By the last toilet in the restroom is a document on the floor, turn it around for this collectable secret.

[Secret #7: Engineer’s Logbook] – Objective: Find a Way Out of the Ship
As Conrad/Alex (playing as Alex if Conrad escaped on Speedboat): Just after the last collectible, backtrack to where Julia is standing to the right of the door. Go through the door and across the bridge while Julia walks behind you. At the end of the bridge you can see Alex standing around, but before you follow him check a wooden console at the end of the bridge. On it sits a book, which you can open by interacting with it. Browse through the pages for a secret collectible.

[Secret #11: Journal] – Objective: Find a Way Out of the Ship
As Conrad/Alex (playing as Alex if Conrad escaped on Speedboat): This is again really close to our previous collectible. Exit the bridge and go through the door. In the next room, head left to find another book on a table, browsing through the pages grants a new secret.

[Black Framed Picture #3: In the Offing] – Objective: Find a Way Out of the Ship
As Conrad/Alex (playing as Alex if Conrad escaped on Speedboat): Same room as the previous secret, at the end of the room left of the exit door sits this black framed image on a cupboard. Inspect it.

Chapter: Caskets

[Secret #23: Catering Staff Schedule] – Objective: Make Your Way through the Ship
As Alex: You will reach a big kitchen. On the wall in the bottom left of the screen is a big paper on the wall, investigating it counts as a new secret collectible!

[Secret #1: Diary] – Objective: Make Your Way through the Ship
As Alex: From the previous collectible, exit the big kitchen into the next room. There you find a book on a table, browse through its pages to obtain the secret.

[Black Framed Picture #4: Cut of Your Jib] – Objective: Make Your Way through the Ship
As Alex: Same room as the last secret, this black picture frame is hanging on a wall. You can see the white glimmer on it from afar.

[Secret #22: Casket Nameplate] – Objective: Make Your Way through the Ship
As Alex: After the last collectible, you’ll come to a room with gravestones in it. Expect the first gravestone on the right.

[Secret #24: Open Casket] – Objective: Make Your Way through the Ship
As Alex: Same room as the last secret, this time inspect the casket on the left.

[Secret #13: Locked Casket] – Objective: Make Your Way through the Ship
As Alex: Still in the same room as the previous item. This time, inspect the 2nd casket on the left.

[Secret #35: Small Casket] – Objective: Make Your Way through the Ship
As Alex: Still same room as before, inspect the 2nd casket on the right side. Those are all 4 collectibles in this room!

[Secret #18: Terrified Corpse] – Objective: Find Conrad
As Alex: You’ll come to a room (med bay) where Alex sees a corpse in a bed and freaks out. Only he sees the face of the corpse changing, Julia will get into a short argument with him because she thinks Alex is messing around with her. After this short sequence, there are two doors. Conrad and Julia will go through the right door, but you’ll want to go through the door straight ahead. It’s a medical operations room. Look at the corpse sitting on the floor in the corner for a secret.

[Secret #39: Electrocardiogram Results] – Objective: Find Conrad
As Alex: Same room, same location as the last secret. Left of the corpse with the gas mask on it, are some test results. You need to turn them over when inspecting them to trigger the secret.

Chapter: Danny

[Secret #41: Medan Hat] – Objective: Find an Opportunity to Escape
As Fliss: When you start playing as Fliss again, one of the Pirate guys (Danny) will escort her. Just follow the path, there will be an automatic cutscene with a hat over some bags, Danny thinks it’s a guy sitting there and pushes off the hat. Turns out it’s just some old bags. After the cutscene, Fliss can pick up the hat from the floor.

[Secret #16: Screaming Corpse] – Objective: Find an Opportunity to Escape
As Fliss: In the room after the last collectible, there will be a short cutscene where Fliss sees a corpse that has a screaming face and the pirate guy escorting her starts talking about the ghost of the corpse still being on the ship, to which Fliss replies he has no idea what he’s talking about. After this cutscene, investigate the screaming corpse to find a secret.

[White Framed Picture #3:  Close Quarters] – Objective: Find the Others
As Fliss: Right after the last secret, follow the path to the end of the corridor. The picture hangs on the wall here, but the pirate guy pushes Fliss away when she tries to look at it. Advance a little further until the pirate guy starts running away and shooting his weapon. Pick up he flashlight he left behind, then backtrack to the white framed picture location from before. Now you can inspect it.

[Secret #32: Dog Tag] – Objective: Find the Others
As Fliss: When Fliss comes to a cargo hold with lots of trucks and cars parked in it, there will be a corpse at the end of the main hall. It’s on the ground just before the door you must pass through, thus it’s in plain sight. You find a dog tag secret here. Also, you can take a slight detour to the left of the cargo hold to find a knife but this one doesn’t count as a collectible.

Chapter: Finding Friends

MISSABLE CHAPTER: Brad must have stayed undetected on the boat when the pirates arrived at night during chapters “Intrusion” and “Storm”. You do this by being submissive with Junior (one of the pirates) who escorts Conrad back on the ship after Olson (pirate leader) has beaten him on the outside deck. If you didn’t cause a fight back then, Brad will have stayed undetected on the boat. When the pirates want Fliss to ask for a weather report over the radio and she says she’s been kidnapped, they boat can get flooded and Brad gets detected too. Only if Brad remained undetected on the boat you can find these collectibles.

[Secret #21: Hastily Written Message] – Objective: Find the Others
As Brad: After you open the very first door as Brad on the ghost ship, you go up some stairs. Now head to the end of the long corridor and into the side room on the right (at very end of corridor). There on a table is a note that you can turn around for a secret. Do not confuse this room with the one where we’re headed for the next collectible.

[Secret #43: Infantry Badge] – Objective: Find the Others
As Brad: Still in the vicinity of the previous item, do a little backtracking and enter the right-side room in the middle of the corridor. Here a cutscene will play, showing a group of soldier corpses with frightened faces. In this room, inspect the single corpse on the left to see a US Army badge.

[Secret #4: Locks Memo] – Objective: Find the Others
As Brad: After going through a room with corpses in the lockers (hint: can get the gas mask here by investigating the same locker twice), you will come to a point where Brad must push a box to climb over a wall. BEFORE climbing over the wall, open the door near the box, leading into a room with a note on a table. That’s the secret collectible.

[White Framed Picture #5: Copper Bottomed] – Objective: Find the Others
As Brad: After climbing across the aforementioned wall (where you had to push box), investigate the first room on the right side. Inside you find the location of a white framed picture.

[Secret #19: Radio Operator’s Memo] – Objective: Look for a Way Out
As Brad: After the previous picture frame, exit to the next area, which will trigger a black loading screen. Afterward, you’re on the upper floor of the cargo hold. Walk to the top left corner where two corpses are (one hanging, one on a box). Investigate the corpse on the box for its piece of paper.

Chapter: Ritual

[White Framed Picture #4: Keelhaul] – Objective: Explore the Ballroom
[HIGHLY MISSABLE – There is a hidden timer in the Ballroom, be quick to grab the collectibles here or else it will automatically trigger a cutscene that locks you out]
As Fliss: When you enter the big red ballroom with a piano in it, immediately head through the door to the right of the stage platform (do NOT interact with any objects in the ballroom or spend any time here). Next to the stage there’s this tiny backroom with a white image frame location. It’s tricky to see because of the camera angle, you must walk to the corner of this tiny room to see it. Note: If you let too much time pass, doing so would trigger a demon to appear which chases Fliss away. Then you’d miss out on this frame and the next 2 secrets here.

[Secret #38: Chemical Leak] – Objective: Explore the Ballroom
[HIGHLY MISSABLE – There is a hidden timer in the Ballroom, be quick to grab the collectibles here or else it will automatically trigger a cutscene that locks you out]
As Fliss: After looking at the image frame, pull the lever right next to it. This opens the stage. Behind the stage is a casket and a door. Go through the door, which triggers a short cutscene. Fliss will go back inside but the area has changed and the casket turned into an old crate. Open this big crate for a secret. Next one is in same area.

[Secret #37: Broken Wires] – Objective: Explore the Ballroom
[HIGHLY MISSABLE – There is a hidden timer in the Ballroom, be quick to grab the collectibles here or else it will automatically trigger a cutscene that locks you out]
As Fliss: Same area as before. After looking at the chemical leak in the crate, head back out to the ballroom (only now it changed into a dusty storage room). Check the faulty electrical wire that’s hanging over water.

[Secret #47: Cargo Ship Manual] – Objective: Explore the Ballroom
[HIGHLY MISSABLE – There is a hidden timer in the Ballroom, be quick to grab the collectibles here or else it will automatically trigger a cutscene that locks you out]
As Fliss: Still in the same room, go look at the document that’s sitting on a barrel (across the room from the broken electrical wires).

Chapter: Pressure

MISSABLE CHAPTER: In order to get to this chapter, Fliss and Brad must be reunited at end of chapter “Ritual”. To get this to happen, you have to pull the lever in the ballroom of chapter “Ritual”, then go backstage and out the door so Fliss can get fresh air to clear her head from the Manchurian Gold Mist (that made her imagine the ballroom). This makes it so she won’t see Brad as a demon when he arrives. Secondly, Brad should have found the gas mask in Chapter “Finding Friends” so he doesn’t get affected by the Manchurian Gold Mist and won’t attack Fliss in the ballroom. If those requirements are met you’re on the safe side.

[Secret #25: Ghost Rumours Report] – Objective: Find a Way to the Upper Deck
As Fliss: After Fliss and Brad reunite, there will be a short cutscene where water suddenly sprays out of the wall, then there will be a room where they are supposed to climb up a ledge. BEFORE climbing up the ledge, check for a corpse in that same room (on the floor).

Chapter: Glamor Girl

MISSABLE CHAPTER: This is only available if Fliss & Brad didn’t recognize each other at end of chapter “Ritual” (they saw each other as demon). To get this, Fliss can’t go backstage in chapter “Ritual” and needs to wait 10 minutes or so in the red-looking ballroom until the next cutscene auto-triggers. Brad should also not have found the gas mask in chapter “Finding Friends”. Conrad did NOT escape (or die) on the speedboat during chapter “Intrusion”.

[Secret #5: Water Purification Plant Map] – Objective: Escape and find Alex and Julia
As Conrad: As soon as you gain control of Conrad, check the first room on the left for a map.

[White Framed Picture #1: Plain Sailing] – Objective: Escape and find Alex and Julia
As Conrad: Same room as the above secret. There’s a white framed image on a wall (same place as the previous secret).

[Secret #9: Man Overboard Search Orders] – Objective: Escape and find Alex and Julia
As Conrad: Same area as the above two items, in the next room on the right side of the corridor.

SHARED STORY CO-OP ONLY / CURATOR CUT & HIGHLY MISSABLE: The following collectibles are still found in the chapter “Glamor Girl”, but ONLY in Shared Story Online Co-Op. You need a 2nd player for this. These are HIGHLY MISSABLE because Fliss, Brad and Conrad must all end up in Glamor Girl chapter together.

To accomplish this:

• Conrad doesn’t escape on speedboat in Chapter “Intrusion”
• Brad wasn’t detected on the boat in Chapter “Intrusion / Storm”
• Brad found the Gas Mask in the locker room of Chapter “Finding Friends” (investigate the same locker twice to see gas mask)
• Fliss goes backstage in Chapter “Ritual” to get fresh air (makes her see Brad as himself and not as a demon)
• Fliss and Brad recognize each other at end of Chapter “Ritual”
• Then Fliss will go together with Brad to chapter “Pressure”. Beat this and they will end up together in Chapter “Glamor Girl”.
• If you complete the above requirements correctly and Conrad + Brad + Fliss end up in the same area, Player 1 will play as Fliss and can reach collectibles that are inaccessible solo. Player 2 will be playing as Conrad. Make sure that Fliss (Player 1) finds the collectibles before Conrad (Player 2) opens the locked door with a candleholder. The co-op collectibles count for both players (if Player 1 finds them, Player 2 gets them too).

[Secret #15: Cargo Bill of Landing] – Objective: Not available (Shared Story Only / or Curator Cut Mode)
As Fliss (Shared Story Online Co-Op): As soon as the hosting player gains control of Fliss (after the joining player as Conrad runs away from Fliss), you can find this item on a table on the left side.

[Secret #31: Violent Incident Report Sheet] – Objective: Not available (Shared Story Only / or Curator Cut Mode)
As Fliss (Shared Story Online Co-Op): In the second room on the right side, on a table.

[Black Framed Picture #5: Ship Shape] – Objective: Not available (Shared Story Only / or Curator Cut Mode)
[HIGHLY MISSABLE – Only available if Brad & Fliss are both together, see above steps in red color]
As Fliss (Shared Story Online Co-Op): In a room on the left. Fliss can’t open it by herself, only available if Brad is there with her (see above requirements colored in red).
*Special thanks to JoaLoft for info on this

[Secret #17: Manchurian Gold Test Results] – Objective: Not available (Shared Story Only / or Curator Cut Mode)
As Fliss (Shared Story Online Co-Op): In the last room, there’s a locked safe on the floor. To open it, get the key from the table near it (there are some war medals in the drawer, under them is the key). Then insert the key in the safe lock. Inside you find this rather well hidden and easy to miss secret!

Chapter: Open Deck

NO COLLECTIBLES IN THIS CHAPTER!

Chapter: Distress Signal

[Secret #50: Anti-Aircraft Shell Casing] – Objective: Find a Way up the Tower
As Alex: Once you’re on the weather deck (upper deck of the ship), you can find a shell casing on the left side, on top a wooden crate.

[Secret #3: Gas Mask Instructions] – Objective: Find a Way up the Tower
As Alex: From the last secret, advance up the weather deck and take a right turn. There in the corner you can find a big crate with a white item glow on it. Open the crate to find a guy with a gas mask inside, and a paper that you can turn around for this collectible. This is BEFORE you press on a glowing ledge (doing so would make you climb that ledge and leave the weather deck).

[Secret #42: Ship’s Logbook] – Objective: Locate the Ship’s Radio
As Alex: After climbing up the aforementioned ledge, you go up some stairs and have to push open the door to the captain’s cabin. In the first room, read the log book that’s on a table.

[Black Framed Picture #6: Loose Cannon] – Objective: Locate the Ship’s Radio
As Alex: Same room as the last collectible, there’s a black framed picture hanging on a wall (on the path to the radio).

[Secret #6: Nautical Chart] – Objective: Locate the Ship’s Radio
As Alex: From the black framed picture, head inside the next room and investigate the big map on the wall (one room before reaching the radio).

[Secret #10: Navigator’s Notebook] – Objective: Locate the Ship’s Radio
As Alex: Same room as last item, piece of paper on a table (still the room before reaching radio).

[Secret #29: Radio Operator’s Final Message] – Objective: Locate the Ship’s Radio
As Alex: From last collectible, enter the next room. Now you’re inside the radio room. BEFORE walking towards the radio, read the letter from the corpse.
[HIGHLY MISSABLE – If you walk too close towards the radio, the next sequence will trigger. If this triggers by accident before you got this collectible, close the game immediately and you will respawn before the radio]

Chapter: Depths

[Secret #48: Minutes of Meeting] – Objective: Find the Generator
As any character (depending on who is alive and goes down the hole): After finding the radio you jump down a hole to the Lower Deck. There will be a writing “Sick Bay” on a corridor wall, after it is a room on the left (you actually came by this in the prologue). Interact with the safe to find a secret paper inside.

[Secret #27: Private Patterson’s Medical Record] – Objective: Find the Generator
As any character (depending on who is alive and goes down the hole): Just after our last secret, follow the corridor and enter the first aid sick bay at the end. Pick up the note on the table. When you reach a catwalk you went too far and must go back.

[Secret #8: Engine Room Telegraph Log] – Objective: Find the Generator
As any character (depending on who is alive and goes down the hole): After dropping down the broken ladder into the engine room, check for a book behind the engine. If you reach the generator you went too far (don’t interact with generator yet).

[White Picture #6: Know the Ropes] – Objective: Find the Generator
[EASY TO MISS – If you walk into the room to the left of the power switch, a cutscene where you find a rebreather will trigger and you’d miss this collectible]
As any character (depending on who is alive and goes down the hole): After our last collectible, walk to the right side of the engine room until you reach the power switch. Do NOT go through the door to the left of the power switch (triggers a cutscene with rebreather). Instead, check for a secret path to the RIGHT side of the power switch. It’s immediately to the right when standing in front of the power switch. It’s easy to overlook this one as it blends in with the environment. When you walk to the end of this secret path, there’s the final white picture located in a locker. If you triggered the cutscene where you find the rebreather you went too far.

[Secret #34: Military Orders] – Objective: Search the Room
[HIGHLY MISSABLE – If you mess up the pulse QTE you will miss this. If you spend too long in the next room, you will also miss this!]
As any character (depending on who is alive and goes down the hole): After you see Olson stabbing Danny (pirate leader stabs his henchman), he will come out of the room and you must hold still (pulse QTE). Afterward you can enter the room. Quickly grab the item in the right corner! There’s a short timer here, a cutscene will play after a few seconds. Highly missable.

Chapter: Olson

*In Chapter “Distress Call” Alex & Brad went down the hole (Fliss must be dead so she can’t argue with them). Conrad and Julia stayed behind at the radio. Olson goes to Cargo Hold for the final encounter. You must still play through Chapter “Depths” and will then get the “Olson” Chapter. This locks you out of “Matters of the Heart”.
Alternative workaround (thanks to user “DD” in comment section): You can keep everyone alive and send Alex/Julia down the hole, fail to calm Junior and have him shoot Julia, which triggers the chapter Olson so Conrad can go investigate the gunshot and get the collectibles.

[Gold Framed Picture #1: A Little Hope] – Objective: Investigate the Gunshot
[MISSABLE – Alex & Brad went down the hole, Fliss is dead, Julia and Conrad have stayed behind at the Radio in Chapter “Distress Call”. Alternative workaround see above.]
As whoever goes down the hole last: First of all, Conrad must still be alive by this point to even get here. Once you gain control of him, you go through some rooms with bunk beds. On a wall on the left side (in a room where you must open a locked door), you can find a black framed picture.

[Secret #36: Casket Shortage Memo] – Objective: Investigate the Gunshot
[MISSABLE – Alex & Brad went down the hole, Fliss is dead, Julia and Conrad have stayed behind at the Radio in Chapter “Distress Call”. Alternative workaround see above.]
As whoever goes down the hole last: Same room as the last framed image. At the end of the room, to the right side of the locked door.

Chapter: Matters of the Heart

*In Chapter “Distress Call” Brad & Julia went down the hole. Everyone else stayed behind in the radio room. Olson goes to Kitchen for the final encounter. You must still play through Chapter “Depths” and will then get the “Matters of the Heart” Chapter. This locks you out of “Olson”.

[Secret #2: Top Secret Intelligence Note] – Objective: Get the Distributor Cap from Olson
As Alex: After the 3-button QTE where you jump over a gap, you see Olson dying from the Manchurian Gold Mist in a kitchen. In the section where you walk after him. When you walk through the kitchen (before reaching Olson), there’s a collectible on the floor on the left side.

SHARED STORY CO-OP ONLY / CURATOR CUT & MISSABLE: The following collectibles are still found in the chapter “Matters of the Heart”, but ONLY in Shared Story Online Co-Op or CURATOR CUT game mode. In Shared Story you need a 2nd player for this. In chapter “Distress Signal”, Brad and Julia went down the hole in the radio room (Alex and Fliss stayed behind). Then in “Matters of the Heart”, Alex must complete the 3-button QTE to jump over a gap and Olson must die from Manchurian Gold Mist in the kitchen (same as for Secret #2). Afterward the joining player will play as Fliss. Immediately after taking control of Fliss you find the following 3 collectibles all in the same room!

[Secret #46: Diplomatic Immunity Contract] – Objective: Not available (Shared Story Only / or Curator Cut Mode)
As Fliss: As soon as the joining player (Player 2) takes control of Fliss, walk through the door ahead and you come outside on the deck of the ship. There in the next room (cannot be missed), you find 4 secrets!

[Secret #12: ID Badges and Documentation] – Objective: Not available (Shared Story Only / or Curator Cut Mode)
As Fliss: Same room as the last collectible.

[Secret #33: Toxins Research] – Objective: Not available (Shared Story Only / or Curator Cut Mode)
As Fliss: Same room as the last collectible.

 

Those are all Collectibles you can find in The Dark Pictures Anthology: Man of Medan.