The game’s story is rooted in a psychological theory—based on real-world research—that suggests individuals can become numb or courageous through repeated exposure to their deepest fears.

: You (and optionally up to four other players) enter a mysterious, cursed house to participate in an experimental "Fear Therapy" session.

: The navigation and layout of the house change in real-time, meaning the path you used to enter a room may not be the same one you use to leave.

: The narrative explores the cycle of fear: subjects initially feel terror, then overcome it through exposure, but eventually fall into a state of numbness or "unnatural courage" that leads them deeper into the nightmare.

: Players work together (or alone) against an AI-controlled demon.