Réalisation: Arthur Lubin
Pour sauver son collègue sur le point de mourir, le chirurgien Ernest Sovac décide de lui transplanter une partie de cerveau ayant appartenu à un dangereux criminel. Mais l'opération a pour conséquence de voir réapparaître la personnalité du criminel...
Stanley Ridges
Prof. George Kingsley / Red Cannon
Boris Karloff
Dr. Ernest Sovac
Béla Lugosi
Eric Marnay
Anne Nagel
Sunny Rogers
Anne Gwynne
Jean Sovac
Virginia Brissac
Mrs. Margaret Kingsley
Edmund MacDonald
Frank Miller
Paul Fix
William Kane
Murray Alper
Bellhop
Jack Mulhall
Bartender
Raymond Bailey
Louis Devore
Joe King
Chief of Police
John Kelly
Taxi Driver
Jessie Arnold
Nurse
Elfriede Borodin
2nd Nurse
Tommy Conlon
Student
Franco Corsaro
Club Maitre d' (uncredited)
James Craig
Reporter Ernst Gives Notes To
Kernan Cripps
Detective
Eddie Dunn
Det. Farnow
Stanley Ridges
Prof. George Kingsley / Red Cannon
Boris Karloff
Dr. Ernest Sovac
Béla Lugosi
Eric Marnay
Anne Nagel
Sunny Rogers
Anne Gwynne
Jean Sovac
Virginia Brissac
Mrs. Margaret Kingsley
Edmund MacDonald
Frank Miller
Paul Fix
William Kane
Murray Alper
Bellhop
Jack Mulhall
Bartender
Raymond Bailey
Louis Devore
Joe King
Chief of Police
John Kelly
Taxi Driver
Jessie Arnold
Nurse
Elfriede Borodin
2nd Nurse
Tommy Conlon
Student
Franco Corsaro
Club Maitre d' (uncredited)
James Craig
Reporter Ernst Gives Notes To
Kernan Cripps
Detective
Eddie Dunn
Det. Farnow
Stanley Ridges
Prof. George Kingsley / Red Cannon
Boris Karloff
Dr. Ernest Sovac
Béla Lugosi
Eric Marnay
Anne Nagel
Sunny Rogers
Anne Gwynne
Jean Sovac
Virginia Brissac
Mrs. Margaret Kingsley
Edmund MacDonald
Frank Miller
Paul Fix
William Kane
Murray Alper
Bellhop
Jack Mulhall
Bartender
Raymond Bailey
Louis Devore
Joe King
Chief of Police
John Kelly
Taxi Driver
Jessie Arnold
Nurse
Elfriede Borodin
2nd Nurse
Tommy Conlon
Student
Franco Corsaro
Club Maitre d' (uncredited)
James Craig
Reporter Ernst Gives Notes To
Kernan Cripps
Detective
Eddie Dunn
Det. Farnow