
A university chemistry professor experiments with an ancient Mayan gas on a medical student, turning the would-be surgeon into a murdering ghoul as part of a plan to steal his lover.
Cast

George Zucco
Dr. Alfred Morris

David Bruce
Ted Allison

Evelyn Ankers
Isabel Lewis

Turhan Bey
Eric Iverson

Robert Armstrong
'Scoop' McClure

Milburn Stone
Sgt. Macklin

Addison Richards
Editor Gavigan

Rose Hobart
Della Elliott, reporter

Andrew Tombes
Mortician Eagan

Charles McGraw
Detective Garrity

Lillian Cornell
Isabel's Singing Voice (voice) (uncredited)
Gus Glassmire
1st Cemetery Caretaker

Gene O'Donnell
Radio Reporter (uncredited)

Mike Lally
Reporter (uncredited)
Chuck Hamilton
Policeman (uncredited)
Hans Herbert
Attendant (uncredited)

Isabel La Mal
Maid (uncredited)

Bess Flowers
Woman in Audience (uncredited)

Cyril Ring
Man in Audience (uncredited)
Bert Moorhouse
Man in Audience (uncredited)
Edmund Mortimer
Man in Audience (uncredited)

Lew Kelly
Stagehand (uncredited)
William Ruhl
Stagehand (uncredited)
Crew

James P. Hogan
Director
Brenda Weisberg
Screenplay
Paul Gangelin
Screenplay
Milton Carruth
Editor

Milton Krasner
Director of Photography
Ben Pivar
Associate Producer
Vera West
Costume Designer

Jack Pierce
Makeup Artist
Bernard B. Brown
Sound Director
Hans J. Salter
Music Director
Russell A. Gausman
Set Decoration
A.J. Gilmore
Set Decoration
Hans Kraly
Original Story
John B. Goodman
Art Direction
Martin Obzina
Art Direction



















