With no witnesses, no traces, and no corpse, Josy, the 13-year-old daughter of well-known psychiatrist Viktor Larenz, has disappeared in unexplained circumstances. Two years later, a mysterious woman appears. She forces Viktor to face up to his daughter's disappearance and pushes him to his psychological limits.
A married couple retreats to a luxury, high-tech, fully automated house on a remote island. The house AI system goes rogue and turns against them.