Trouble begins when a hated cad of a sponsor is found murdered during the climax of a live radio show. A radio engineer then tries to solve the murder.

Nan Grey
as Christina "Steenie" MacCorkle

Donald Woods
as Benjamin Butts

Jed Prouty
as Harry Jones

Berton Churchill
as Caesar Kluck

William Lundigan
as Dave Chapman

Richard 'Skeets' Gallagher
as Finney Fish

Edward Van Sloan
as Leonard Sylvester

George Meeker
as Tuttle

Frank Milan
as Alexander MacCorkle

Lee J. Cobb
as Tony Lisotti