Jennifer Corvino (Jennifer Connelly) is the young daughter of a world famous actor. She also struggles greatly with multiple personalities and an odd acumen for communicating with animals and insects. She is sent to live in a boarding school in Switzerland that may be able to help her and harness her powers, which reach their potential while she sleepwalks. There a serial killer has been hunting young girls in their sleep and Jennifer is quite concerned with his whereabouts. Her headmaster has also been one of the killer’s victims and she fears for her life and the life of her schoolmates. To survive she must channel her abilities against an unstoppable murderous force.