This complete Forensic M.E. Protocol Case 2 walkthrough guides you through every step of 'The Crimson Marionette,' from cracking Elias Vance's safe to exposing the Puppeteer and securing the true ending. The key to the case is realizing the antique music box is a Trojan horse; you must correctly sequence the M.E. link memories before you confront Director Thorne with the combined evidence to achieve the best outcome.
Case 2 is a significant step up in complexity from the introductory mission, introducing deeper environmental puzzles and a branching conclusion. Failing to connect the dots properly can leave you with an incomplete picture and a less satisfying ending.
First Steps: Investigating Elias Vance's Penthouse
Your investigation begins at the sprawling penthouse apartment of the victim, Elias Vance, a lead researcher at the M.E. Protocol project. The scene is clean, almost sterile, but the details tell a story. Your primary goal here is to collect four key pieces of evidence before proceeding to the M.E. link. Don't leave the apartment until you have all four.
All Primary Evidence Locations
- Encrypted Datachip: This is the most obvious piece of evidence. It's located on the floor next to Elias Vance's body. Interact with the body to trigger the initial analysis and pocket the chip.
- Antique Music Box: Found inside the large, black titanium safe against the far wall of the main living area. You'll need to solve a puzzle to open it (see next section).
- Synthetic Blood Trace: This one is easy to miss. Equip your Bio-Scanner and sweep the area around Vance's main work terminal. You'll find a faint, anomalous residue on the corner of the desk, near a knocked-over picture frame. The trace is synthetic, a crucial clue that this wasn't a simple crime of passion.
- Encrypted Personal Terminal: This is Vance's main computer in his home office. Accessing it is simple, but the files within are locked behind a password. You must log the locked terminal as evidence.
How to Solve the Penthouse Puzzles
Two main puzzles block your progress in the penthouse: Vance's safe and his personal computer. Both solutions are found within the environment itself, requiring you to pay close attention to the victim's life and history.
Cracking the Safe
The safe combination is tied to Vance's history with the company that funded his research. On the wall opposite the safe, you'll find a large, metallic plaque commemorating the establishment of the 'Vance Foundation for Cybernetic Advancement.'
- The Clue: The plaque clearly states the foundation was established in 2042.
- The Code: The safe uses a simple four-digit pin. Enter 2042 to unlock it.
Inside, you will find the Antique Music Box. Its presence in a high-security safe should immediately strike you as odd. This is your most important piece of physical evidence.
Infographic showing the 4 steps to decrypt the terminal in Case 2.
Decrypting the Personal Terminal
With the terminal logged as evidence, you can now attempt to bypass its security. Interacting with it brings up a password prompt with a hint: "My greatest failure."
- Finding the Password: You don't need to leave the terminal interface. On the public login screen, there's an accessible link to an archived news feed. Browse the articles.
- The 'Helios' Incident: Look for an older article detailing a corporate scandal from the 2030s. It describes the catastrophic failure of the 'Helios Project,' a solar energy initiative that Vance was once involved with, which led to a massive financial and public relations disaster.
- Entering the Password: Return to the password prompt. The password is HELIOS.
Unlocking the terminal grants you access to Vance's personal logs and encrypted research notes, which reveal his growing paranoia about Director Thorne and a mysterious third party he calls the 'Puppeteer.'
The M.E. Link: Reconstructing Vance's Final Moments
Once you have all four pieces of evidence, you can initiate the Memory Emulation link with Vance. This mechanic drops you into three fragmented memories. Placing them in the correct chronological order is vital to understanding the crime. The wrong order will obscure the killer's methods.
The Correct Memory Sequence
You must arrange the fragments to form a coherent narrative. The correct order is not how they are presented, but the logical flow of events.
- Memory Fragment 2: 'Receiving the Music Box' — This memory shows a courier delivering the antique music box to Vance. He seems pleased, placing it on his desk. This is the start of the final sequence of events.
- Memory Fragment 1: 'Heated Argument with Thorne' — This memory shows Director Thorne visiting Vance's apartment. They argue fiercely over the 'Puppeteer' data. Thorne gestures angrily toward the desk, near where the music box is sitting.
- Memory Fragment 3: 'Final Data Transfer' — This final fragment shows Vance alone, clutching his head in pain. He initiates a data transfer from his terminal to the encrypted chip just as his motor functions fail. The music box is open on the desk.
The correct sequence is 2-1-3. This order reveals the truth: the music box was not a gift but a weapon. It contained a neurotoxin that was likely activated remotely during or shortly after Thorne's visit, making Vance's death look like a stroke or aneurysm while giving the killer time to get away.
A three-panel comic showing the correct M.E. Link memory sequence.
Confronting Director Thorne: Presenting the Evidence
With the M.E. Link data secured, the game funnels you into a direct confrontation with Director Thorne. He will deny everything, and you must present the correct piece of evidence at specific points in the conversation to break his composure and expose the truth. Presenting the wrong evidence will allow him to deflect and lead to the bad ending.
Here is the correct evidence to present for each of his major denials:
| Thorne's Statement | Correct Evidence to Present | What It Proves |
|---|---|---|
| "Elias was a traitor, selling secrets to our rivals." | Encrypted Personal Terminal | Vance's logs show he was tracking a conspiracy, not selling secrets. |
| "His research on synthetic biology was a dead end." | Synthetic Blood Trace | The trace at the scene proves the research was viable and being weaponized. |
| "You have no proof I was even there. This is a farce." | Correctly Sequenced M.E. Link Data | The memory confirms Thorne's presence just before the neurotoxin was activated. |
Presenting these three pieces of evidence in response to his claims will shatter his defense, forcing a confession and triggering the case's true conclusion.
An evidence board from the Forensic M.E. Protocol Case 2 walkthrough, linking Director Thorne to the crime.
How to Get the True Ending for Case 2
Achieving the 'True Ending' for "The Crimson Marionette" requires a perfect run of the investigation. If you miss a step, you'll get a standard or bad ending where Thorne gets away with the cover-up.
To unlock the true ending, you must complete these four objectives:
- Collect all 4 pieces of key evidence from the penthouse (Datachip, Music Box, Blood Trace, Terminal).
- Solve both the safe and terminal puzzles to gain access to the music box and Vance's logs.
- Correctly sequence the M.E. Link memories in the 2-1-3 order ('Receiving Box' -> 'Argument' -> 'Data Transfer').
- Successfully present all three key pieces of evidence during the confrontation with Director Thorne.
If all conditions are met, Thorne will be arrested, and you will receive a final, chilling message directly from the Puppeteer, setting the stage for the game's overarching plot. This also unlocks the "Puppeteer's Gambit" achievement.
Frequently Asked Questions
What is the safe code in Case 2 of Forensic M.E. Protocol? The safe code is 2042. You can find this year displayed on the Vance Foundation commemorative plaque in the victim's living room.
How do I get the 'Puppeteer's Gambit' achievement? You unlock this achievement by getting the true ending for Case 2. This requires finding all evidence, solving all puzzles, correctly sequencing the M.E. memories, and presenting the correct evidence to Director Thorne.
I'm stuck on the memory sequence. What's the order? The correct M.E. link order is 2-1-3. The chronological sequence is: Vance receives the music box, then he argues with Thorne, and finally, he succumbs to the poison while transferring data.
Where is the synthetic blood trace? The synthetic blood trace is on the corner of Elias Vance's main desk in his office. Use your Bio-Scanner tool and aim it at the desk near the overturned picture frame to locate it.
The Case is Closed
Successfully navigating Case 2, "The Crimson Marionette," is a major turning point in Forensic - M.E. Protocol. It's not just about solving a murder but about uncovering the first layer of a deep conspiracy that implicates the very organization you work for. By following this guide, you ensure that justice is served for Elias Vance and that the Puppeteer's shadow war is brought into the light.