You'll Find Out
“A Cold-Shiver MYSTERY With Hot-Rhythm MUSIC!”
5.6/ 10 27 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
Alma Kruger
Aunt Margo Bellacrest
Joseph Eggenton
Jurgen
