Phil and Lou inherit property left by an eccentric uncle with the provision they occupy the house for thirty days. But their cousin, Anita, wants the property for herself and, with several hired-henchmen, sends "ghost" after "ghoul" through the house after the boys arrive.
Newlyweds Nick and Suzanne decide to move to the suburbs to provide a better life for their two kids. But their idea of a dream home is disturbed by a contractor with a bizarre approach to business.
When a man claiming to be long-lost Uncle Fester reappears after 25 years lost, the family plans a celebration to wake the dead. But the kids barely have time to warm up the electric chair before Morticia begins to suspect Fester is fraud when he can't recall any of the details of Fester's life.
Three wealthy children's parents are killed in a fire. When they are sent to a distant relative, they find out that he is plotting to kill them and seize their fortune.