The manager of Kay Kyser’s band books them for a birthday party bash for an heiress at a spooky mansion, where sinister forces try to kill her.

• RKO Radio Pictures
• Kay Kyser
• Peter Lorre
• Boris Karloff
• Bela Lugosi
• Helen Parrish
• Dennis O'Keefe
• Alma Kruger
• Joseph Eggenton