Angela (Rachel Nichols) is working late on Christmas Eve. When she finally decides to leave, she goes down to the parking garage to get her car, but it won't start. Thomas (Wes Bentley), the garage's security guard, offers to help. He also invites Angela to dinner, but she refuses. Thomas, crazed, knocks her out. She wakes up in Thomas' office, chained to a chair and in different clothes. Now Angela must fight for her life in order the escape from the garage.