You'll Find Out
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.
- Genre: Comedy, Horror, Romance
- Studio: RKO Radio Pictures
- Keyword: musical, old mansion
- Cast: Kay Kyser, Peter Lorre, Boris Karloff, Bela Lugosi, Helen Parrish, Dennis O'Keefe