An evil doctor and the greedy wife of a rich man plot to poison him so they can get their hands on his money.
Cast
Boris Karloff
Dr. Victor Sartorius
Joan Wyndham
Eve Rowe
Arthur Margetson
Roger Clifford
Mona Goya
Yvonne Clifford
Anthony Ireland
Capt. Arthur Halliday
Morton Selten
Sir Charles Clifford
Nina Boucicault
Mary Clifford
Gibb McLaughlin
Jacques
J.H. Roberts
Chalmers
Victor Rietti
Doctor Bousquet
Wilfrid Caithness
Morrocan Official
Crew
Henry Edwards
Director
Heinrich Fraenkel
Adaptation
Cyril Campion
Screenplay
H. Fowler Mear
Screenplay
Alice Campbell
Novel
Michael C. Chorlton
Editor
William Luff
Director of Photography
Sydney Blythe
Director of Photography
Edward L. Alperson
Executive Producer
Julius Hagen
Producer
W.L. Trytel
Original Music Composer
James A. Carter
Art Direction
