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.
- genus: Comedy, Horror, Romance, Music, Mystery
- Studio: RKO Radio Pictures
- keyword: birthday party, bandleader, big band, old mansion
- cast: Kay Kyser, Peter Lorre, Boris Karloff, Bela Lugosi, Helen Parrish, Dennis O'Keefe
