A young couple has just faced a car accident. They join a group of Derby girls to seek shelter in a dilapidated mental asylum. They cannot make the journey until the following morning and the darkness is closing in. Soon, they find out that there is the haunting spirit of a girl in the asylum. She, however, seems to be traumatized and seeks vengeance. In their attempt to understand the girl, the group finds another dark spirit that vows to end their lives.