Danger on the Air 1938

Synopsis:

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.

Directed by: Otis Garrett
Written by: Betty Laidlaw & Robert Lively
Runtime: 70 minutes
Tagline: A Murder Mystery Chiller-Diller!
Cast:
Nan Grey
Nan Grey
Christina "Steenie" MacCorkle 
Donald Woods
Donald Woods
Benjamin Butts 
Jed Prouty
Jed Prouty
Harry Jones 
Berton Churchill
Berton Churchill
Caesar Kluck 
William Lundigan
William Lundigan
Dave Chapman