"A researcher investigating a notorious serial killer who was hanged 20 years earlier seemingly becomes possessed by the long dead strangler."
Boris Karloff
as James Rankin
Jean Kent
as Cora Seth
Elizabeth Allan
as Barbara Rankin
Anthony Dawson
as Supt. Burk
Vera Day
as Pearl
Tim Turner
as Dr. Kenneth McColl
Diane Aubrey
as Lily Rankin
Max Brimmell
as Newgate Prison Turnkey
Leslie Perrins
as Newgate Prison Governor
Jessica Cairns
as Asylum Maid
Dorothy Gordon
as Hannah
Desmond Roberts
as Dr. Johnson
Roy Russell
as Medical Superintendent
Derek Birch
as Guyse Hospital Superintendent
Peggy Ann Clifford
as Kate
John Fabian
as Young Blood
Joan Elvin
as Can-Can Girl
Audrey Sykes
as Laughing Lady at Hanging (uncredited)
Marie Devereux
as Show Girl (uncredited)
Robert Day
Director
Richard Gordon
Producer
John Croydon
Jan Read
Writer
Executive Producer
Peter Mayhew
Editor
Buxton Orr
Original Music Composer
Barbara Barnard
Hairstylist
Ronald Kinnoch
Production Manager
Douglas Hickox
Assistant Director
Jim Hydes
Makeup Artist
Lionel Banes
Director of Photography
John Elphick
Set Designer
Hazel Swift
Script Supervisor
Terry Poulton
Sound Editor
Les Bowie
Special Effects
Anna Duse
Costume Supervisor
Leo Rogers
Camera Operator
Frederic Lewis
Conductor
Original Story
H.C. Pearson
Sound Recordist