While John is away one day, his daughter, Susan, her friend Lisa, and two boyfriends use an Ouija board in the attic. The game tells them that Susan is in danger. Growing bored, Susan and the others go out in John's motorboat where she falls into the water and drowns. John's estranged wife Nancy, who had come over looking for Susan, who is surprised to see a drenched Susan silently walk up the stairs. Outside John arrives home to find Susan's friends bringing her lifeless body to shore. Nancy has a nervous breakdown and believing Susan is still alive and will return shortly, refuses to leave, even for Susan's funeral.
