You'll Find Out

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.

Cast

Kay Kyser

Peter Lorre

Boris Karloff

Bela Lugosi

Helen Parrish

Dennis O'Keefe

Alma Kruger

?

Joseph Eggenton

Ginny Simms

Harry Babbitt

M.A. Bogue

Sully Mason