 Amy Kramer s ventriloquist dummy, Dennis, keeps losing his head, literally, and Amy has been pestering her Dad for weeks to get her a new one. Little does she know, that when he does, and he does, she will regret it deeply. Amy s Dad brings home a new dummy called Slappy, and on the first night after his arrival, a series of strange pranks begin to happen, that everyone in the family seems to deny playing. However, Amy begins to realize the truth, though no one will believe her, and it may soon be too late...