You'll Find Out
“A Cold-Shiver MYSTERY With Hot-Rhythm MUSIC!”
5.5/ 10 25 votes 1940-11-22 1h 37m 1 popularity
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
Kay Kyser
Himself
Peter Lorre
Professor Karl Fenninger
Boris Karloff
Judge Spencer Mainwaring
Bela Lugosi
Prince Saliano
Helen Parrish
Janis Bellacrest
Dennis O'Keefe
Chuck Deems
