Full Walkthrough and 100% Achievement Guide for Case Files: Behind Closed Doors

Answers to all the choices in the game, which leads to all achievements as well.

Introduction

WARNING! THIS GUIDE IS FULL SPOILERS FOR THE ENTIRE GAME!

First Interviews

• Blast From the Past - At the start, select the folder on the far right side of the room
  
• Truth Seeker #1 - During Emma's 1st interview, select "NO"
  
• Truth Seeker #2 - During Charles' 1st interview, select "YES"
  
• Truth Seeker #3 - During Janice's 1st interview, select "NO"
  
• Truth Seeker #4 - During Rebecca's 1st interview, select "YES"

Second Interviews

• Contradiction #1 - During Emma's 2nd interview, select the video of Charles threatening Daniel from 9/11
  
• Contradiction #2 - During Charles' 2nd interview, select 2 videos: Emma's testimony and Charles entering Daniel's house on 9/12
  
• Contradiction #3 - During Janice's 2nd interview, select the video of Emma's testimony and Janice's texts
  
• Contradiction #4 - During Rebecca's 2nd interview, select the video of Charles' testimony and Crime Photo #4

Third Interviews

• Truth Seeker #5 - During Janice's 3rd interview, select "NO"
  
• Contradiction #5 - During Rebecca's 3rd interview, select 2 videos: Emma's testimony and Janice's testimony
  
• Truth Seeker #6 & Ace Detective - During Emma's 3rd interview, select "YES"
  
• Contradiction #6 & Hold It! - During Charles' 3rd interview, select the video of Janice's testimony and the Autopsy Report

Ending

Case Closed - Pick Rebecca as the killer