After a devastating breakup, William wakes in Saint Augustine Mental Health Hospital. Initially, the environment seems normal—structured days, quiet nights. Then the sounds pounding walls, dragging footsteps, persistent whispers. During a walk, William spots a tall, menacing figure watching from the corridor's end.
When a patient vanishes, William reports the strange goings on, only for his concerns to be dismissed by Head Nurse Riley as delusions. As the nights roll on, noises intensify, the shadow approaches, and other patients confess similar sightings.
They plan to document the creature, but after one patient disappears from the ward, panic spreads. As they attempt escape, William discovers a worse truth.