Dawn always has trouble getting to sleep. She stays awake all night, scared by every little sound and the surrounding darkness but unable to sleep. It isn't helped when her family stops at a hotel for the night. An eerie, empty hotel whose sparse residents seem to keep changing and disappearing. But while staying awake late at night, Dawn hears something break the silence. A knocking at the door, despite the lack of people in the hotel. A strange knocking that persists and becomes louder, compelling her to open the door...