Surveillance cameras cut from room to room of a large old house - an empty kitchen, a bathroom with a bath and toilet and nothing else, a wooden staircase, a hallway. In a bare room a digital clock on a wall counts down from 83 minutes.
The camera cuts to a bedroom with a bed, wardrobe and a small cabinet. On the bed a young woman is waking up. Startled, she looks around. She has no idea where she is. She goes into the hallway and down the wooden stairs. She tries opening the front door. The door is locked.
Very soon she will realise she is not alone and that every room in this house has its horrors. Then the lights go out.
One thing seems certain - someone or something is trying to scare this woman to death.
Can she find a way to survive before the clock hits zero?