You'll Find Out
5.6194097 min
ComedyHorrorRomanceMusicMystery
"A Cold-Shiver MYSTERY With Hot-Rhythm MUSIC!"
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.
Top 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,Alma Kruger as Aunt Margo Bellacrest,Joseph Eggenton as Jurgen
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Production
RKO Radio Pictures