Upon renting a rundown apartment, university student Rin is unsettled by more than just its condition. She senses a pervasive, ominous presence within its walls, feeling constantly under scrutiny by unseen forces. The surrounding neighborhood adds to her unease with its eerie inhabitants, strange cults, and rumors of a killer on the loose. As Rin grapples with the notion of safety within her own home, she realizes that the true threat may lie within the apartment itself. Trapped with her own secrets, she faces terrifying events orchestrated by nightmarish entities, far more chilling than the horrors unfolding in her own dwelling.