
Behind the Mask
#A Slinking Fiend ... Sulking Terror ... Mad Murder!
Watch Behind the Mask Online Free. A Secret Service agent nabs a scalpel-happy doctor who runs drugs in caskets.
- Genre: Crime, Horror, Thriller
- Country: United States
- Director: John Francis Dillon
- Cast: Jack Holt, Constance Cummings, Boris Karloff, Claude King, Bertha Mann,