Behind the Mask
A Secret Service agent nabs a scalpel-happy doctor who runs drugs in caskets.
Genre: Crime, Horror, Thriller
Cast: Jack Holt, Constance Cummings, Boris Karloff, Claude King, Bertha Mann, Edward Van Sloan, Willard Robertson, Thomas E. Jackson, Martha Mattox, Jessie Arnold, Harry Tenbrook
Crew: John Francis Dillon (Director), Jo Swerling (Writer), Jo Swerling (Story), Otis Garrett (Editor), Harry Cohn (Producer)