A doctor becomes the victim of extortionists when one of his patients dies under questionable circumstances.
Dr. Alex Waring
Laura Shelton
Dr. Ian Breck
Henrietta Stevens
Dr. Hearne
Mr. Waring
Matron Fiske
Major Tilling
Inspector Austen
Mrs. Waring
Sister Slater
Anaesthetist
Surgeon
Miss Jenner
Garsten
Sound Recordist
Art Direction
Director
Novel
Editor
Production Manager
Music Director
Original Music Composer
Camera Operator
Writer
Director of Photography
First Assistant Director
Producer
Makeup Artist
Continuity