Kelly, a young college student, suffers from recurring nightmares involving a violent attack in her childhood home. To uncover the mystery behind these dreams, she joins her sorority sisters in a hazing ritual that requires them to break into her father's department store after hours. Unbeknownst to her, a dangerous and malevolent force lurks within the building, tied to Kelly’s enigmatic past. Simultaneously, Kelly seeks the help of Peter, a graduate assistant studying dream analysis, hoping to make sense of her dark and fragmented memories.

As the night progresses, the innocent prank turns deadly. An unknown assailant starts stalking and brutally killing the college students trapped in the labyrinthine department store. Kelly’s struggle to piece together her childhood trauma becomes a race against time as she and her remaining friends strive to survive the nightmare that has come to life. With escalating tension and growing desperation, the young woman’s courage and resourcefulness are put to the ultimate test.