Chapter 4 Route Overview
Episode Four moves between testimony, memory, and the group's last investigation of Addison Apartments. Sal's account sounds impossible in court, but the playable flashback shows how carefully the friends prepared to destroy the corruption inside the building.
The chapter contains several strict collectibles: five teeth, nine VHS tapes, every resident conversation, and skill-based guitar sequences. Make a manual save before entering the final assault if you are pursuing all achievements.
Chapter 4 Walkthrough: Steps, Codes & Choices
Step 1 – Read Beelzebub's runes and enter 867
Visit gallery rooms one through three and count the lines in the paired symbols. The clue reads 7, 6, 8 in discovery order; reverse it at the keypad and enter 8, 6, 7. Record the six-symbol result found beyond the door for later.
◉ Tip: The rune value is the number of lines in the symbol, not its position on the wall: 768 is the clue, 867 is the usable door input.
Step 2 – Search every apartment for tapes and teeth
Speak to every resident, collect the pocket knife, and inspect rooms before moving floors. In room 502, cut open the bird cage and place the five teeth according to the inverted compass clue, with the black tooth in the center. For Brothers, inspect the mattress in room 504, leave the room, return, inspect it again, and check the noose three times.
◉ Tip: The Made in China sticker is upside down, so invert north/south and east/west when placing the teeth.
Step 3 – Open the floor panel with 435542
Use the knife on the suspicious panel in apartment 201. Convert the six runes from Beelzebub's fourth room by counting their lines; enter 435542 to recover the OTHERS VHS tape.
◉ Tip: The 435542 panel code is separate from the gallery door's usable 867 input.
Step 4 – Complete the guitar and Endless One sequences
During the assault, switch characters deliberately and play each guitar pattern without a missed note. From the roof down, the barrier patterns are 2-6-11; 1-5-8-9; 3-7-1-9-10; 4-7-9-7-10-6-3; and 10-6-9-5-10-6-3-8-2. Collect all remaining tapes before entering 103 and beginning the final confrontation with Terrence Addison.
◉ Tip: Dark Melodies and Destroyer fail after a missed input; restart from a save instead of continuing.
Before you finish this Chapter, check the missable conversations, optional triggers, and replay-only achievements in the Chapter 4 Walkthrough Guide.
Chapter 4 Route Checks
Use this as you move between areas. It highlights the interactions worth finishing before the story points you somewhere new.
Gallery dream
Open the first tape route
Read the three symbol clues, use 867 at the door, and record the number shown after the room opens.
◉ The number's original digital shape matters later at apartment 201.
Addison Apartments
Collect the early archive
Take the pocket knife before attempting the carpet, broken-tape and bird-cage interactions.
◉ It supports several VHS and teeth routes, not just one puzzle.
Final apartment floors
Protect completion
Confirm nine tapes, five teeth and the optional Larry actions before entering room 103.
◉ Room 103 is the practical point of no return.
Plan Chapter 4 Achievements Before You Continue
Catching Up / Brothers
Best time: Exhaust resident and Larry dialogue during the apartment search, including the room 504 return interaction.
Watch out: These conversations change with story progress and are easy to skip when collecting tapes.
Teeth / Her Fate
Best time: Finish the five-tooth puzzle and verify all nine VHS tapes before room 103.
Watch out: Room 103 closes the collection window.
Dark Melodies / Destroyer
Best time: Attempt the pillar and Endless One guitar sequences only when you are ready to keep a clean performance.
Watch out: A missed note invalidates the relevant achievement on that attempt.
Chapter 4 Characters & Key Interactions
Meet these characters as the route unfolds. Their profile pages add background and later-story context without interrupting the chapter steps; use the full character roster when you want to follow a relationship beyond this Chapter.
Chapter 4 Achievements
All 7 chapter achievements are here. The story award comes naturally; mark the missable ones before you move into a late sequence, then use the full achievement checklist for an exact trigger or the Chapter 4 Walkthrough Guide when the timing is what matters.
Catching Up
Talk to everyone in the building.
How to unlock: Exhaust the available resident conversations during the apartment search.
Brothers
Hear every Larry conversation.
How to unlock: Use every optional Larry interaction; in room 504, leave after checking the mattress, return, and inspect it again.
Teeth
Find the full tooth set.
How to unlock: Collect five teeth and use them in the room 502 bird cage puzzle.
Dark Melodies
Play every pillar pattern perfectly.
How to unlock: Do not miss a guitar note while destroying the pillars.
Destroyer
Play the final patterns perfectly.
How to unlock: Do not miss a note during the Endless One confrontation.
Her Fate
Recover the complete tape archive.
How to unlock: Find all nine VHS tapes before entering room 103.
Chapter 4 Items, Collectibles & Locations
Pick these up as you go. They are the chapter items that open the route, support an investigation, or keep an optional path available.
Five teeth
- Type
- Puzzle set
- Location
- Across Addison Apartments
- Used for
- Unlocks the bird cage key
Pocket knife
- Type
- Tool
- Location
- Apartment investigation
- Used for
- Cuts the cage, tapes and hidden panels
Nine VHS tapes
- Type
- Collectible set
- Location
- Throughout the building
- Used for
- Unlocks Her Fate and documents the residents
Deadstone
- Type
- Supernatural item
- Location
- Final assault
- Used for
- Allows Larry to affect the corrupted building
Chapter 4 Puzzle Solutions & Codes
These are the direct answers. If a code is right but the route still will not move, the Chapter 4 Walkthrough Guide explains the missing setup or interaction.
Bird cage teeth puzzle
Invert the compass because the label is upside down; place the black tooth in the center.
Beelzebub gallery code
Count the symbol lines for 768, then enter the reversed keypad input 867.
Apartment floor panel
Enter 435542 to recover the OTHERS tape.
Barrier guitar patterns
Roof to first floor: 2-6-11; 1-5-8-9; 3-7-1-9-10; 4-7-9-7-10-6-3; 10-6-9-5-10-6-3-8-2.
Chapter 4 VHS Tapes, Codes & Her Fate
Each card pairs the result with the clue that produces it, so you can solve a blocked route without losing the context behind it.
Beelzebub gallery door
- Clue
- Count lines in the paired symbols in gallery rooms one through three. The clue is 768 in discovery order; enter the result from the bottom of the keypad.
- Answer
- Input: 8 → 6 → 7
◉ 768 is the clue order; enter 867 at the door.
Apartment 201 floor panel
- Clue
- After the gallery route, count the six rune lines and use the pocket knife on the suspicious panel in apartment 201.
- Answer
- 435542
◉ This opens the OTHERS tape route; it is not the gallery-door code.
Nine VHS tapes — Her Fate
- Clue
- Tapes are spread across gallery, apartment and character-switching sections. Several require the pocket knife or a Larry action before Sal can pick them up.
- Answer
- Collect all 9 before entering room 103
◉ Room 103 is the point of no return for the archive.
- LOST — gallery door-four route
- PHANTOM — shed, using 4035364
- OTHERS — apartment 201 panel, 435542
- BRIDGE and HUNGER — apartment investigation
- SKIN, EVOLVE, RAGE and /// — character-switching routes
Bird cage teeth puzzle
- Clue
- The Made in China label is upside down, so the compass directions must be inverted.
- Answer
- Invert north/south and east/west; black tooth in the center
◉ Use all five teeth before moving into the final assault.
Chapter 4 Missables & Final Checks
Use these checkpoints before a late route, a chapter close, or a replay. They are the things most worth confirming while this save is still open.
- Use 867 at the gallery door; 768 is the clue order, not the keypad input.
- Collect all nine VHS tapes and five teeth before entering room 103.
- A missed guitar note prevents Dark Melodies or Destroyer on that attempt.
Chapter 4 Ending Explained
Major spoilers — reveal the ending
Sal destroys the corrupted residents to prevent the Endless One from spreading, but the evidence appears to show only a massacre. The court rejects the supernatural explanation and sentences Sal, while Ash continues searching for proof that can expose what really happened.
Frequently Asked Questions
What is the Episode 4 bird cage solution?
Use the inverted compass orientation and put the black tooth in the center.
What is the floor panel code?
The six-digit floor panel code is 435542.
How many VHS tapes are in Episode 4?
There are nine tapes for the Her Fate achievement.
How do I earn Dark Melodies?
Complete every required guitar pattern during the pillar sequence without missing a note.