You'll Find Out (1940)
1h 37m | PG-13
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.
Director: David Butler
Studio: RKO Radio Pictures
Genre: Comedy, Horror, Romance, Music, Mystery
Video: 720p
Cast
Kay Kyser
as Himself
Peter Lorre
as Professor Karl Fenninger
Boris Karloff
as Judge Spencer Mainwaring
Bela Lugosi
as Prince Saliano
Helen Parrish
as Janis Bellacrest
Dennis O'Keefe
as Chuck Deems