After losing his fiancee in a car crash, for which he blames himself, suicidal Max Matheson (Nick Stahl) reluctantly takes a job as a night watchman at his father's Mayflower Department Store. When his co-workers are killed off in gruesome and horrible ways and Max begins to see a mysterious young woman in all the store's mirrors, desperate to communicate with him, he fears he's losing his mind, or that he may be the next victim.