Larry Abbot, speaker in the radio horror shows of Manhattan Mystery Theater, wants to marry. For the marriage, he takes his fiancée home to the castle where he grew up, among his eccentric relatives. His uncle decides that he needs to be cured from a neurotic speech defect and exaggerated bursts of fear. He gives him shock therapy with palace ghosts.
Two radio voice actors are getting married. Larry has fits of fear. A shrink needs 36 hours to scare him to death and cure him - during a family reunion at a scary family castle.
