Jeannie believes that Marty is trying to contact her when objects begin to move around in her house but it is a ploy by the Foster brothers, spiritualists down on their luck, who offer to pay Jeannie to send them clients anxious to hear messages from loved ones who have crossed over. Sensing a scam, Jeff sends Laura, an actress, to pose as a widow and engage the Fosters. He and Jeannie arrive at the Fosters' home and believe, erroneously, that they have killed her. However, the brothers attempt to murder Jeannie and Jeff by propelling objects using electricity. Marty saves the day by going to the generating station and using vibrations to cause a power cut - not just to the Fosters' house but to the whole neighbourhood.