Boo!

Rumors about the ghosts that haunt Santa Mira hospital and the mysterious circumstances that have occurred in the past have made it a place for teenage scare tactics for years. When a group of five teenagers enter the abandoned hospital on Halloween night, they soon discover that the rumours about the place being haunted are very real. Meanwhile, a trainee cop worried his sister may have gotten lost at the hospital, partners an ex-Blaxploitation actor turned cop, and together they become trapped in the hospital with the teens. In order to escape, they must work together against the ghostly spirits who take over each person one by one, forcing them to question who is alive and who has become a ghost...