Six year old Nicki finds an old doll in the attic. Soon she is behaving oddly, spending most of her time alone in her room. Her mother worries that she is having trouble dealing with the death of her pet cat, while her father thinks she will be fine and will learn to deal with the loss. The truth is far worse than either imagine. Nicki has been cutting herself to feed the doll, who has an insatiable appetite for blood.Terrorized by her new 'friend', Nicki is trapped in a nightmare, unable to tell anyone what Susie is making her do, because as the doll demonstrated with her cat, she is fully capable of killing.