Dirección: Nick Grindé
Un brillante científico inventa un corazón artificial. Tras intentar realizar un arriesgado experimento con un hombre, es acusado por la novia de éste y es condenado a la horca. Después de su ejecución y gracias a su ayudante, regresará a la vida para vengarse de aquellos que lo enviaron a la muerte.
Boris Karloff
Dr. Henryk Savaard
Lorna Gray
Janet Savaard
Robert Wilcox
'Scoop' Foley
Roger Pryor
District Attorney Drake
Don Beddoe
Lieutenant Shane
Ann Doran
Betty Crawford
Joe De Stefani
Dr. Stoddard
Charles Trowbridge
Judge Bowman
Byron Foulger
Lang
Dick Curtis
Jury Foreman Clifford Kearney
James Craig
Juror Watkins
John Tyrrell
Juror Sutton
George Anderson
Prison Warden (uncredited)
Stanley Blystone
Prison Guard (uncredited)
Sam Ash
Druggist (uncredited)
Harlan Briggs
Defense Attorney Parker (uncredited)
Stanley Brown
Bob Roberts (uncredited)
Flo Campbell
Housewife (uncredited)
John Dilson
King - City Editor (uncredited)
Carl Faulkner
Bailiff (uncredited)
Boris Karloff
Dr. Henryk Savaard
Lorna Gray
Janet Savaard
Robert Wilcox
'Scoop' Foley
Roger Pryor
District Attorney Drake
Don Beddoe
Lieutenant Shane
Ann Doran
Betty Crawford
Joe De Stefani
Dr. Stoddard
Charles Trowbridge
Judge Bowman
Byron Foulger
Lang
Dick Curtis
Jury Foreman Clifford Kearney
James Craig
Juror Watkins
John Tyrrell
Juror Sutton
George Anderson
Prison Warden (uncredited)
Stanley Blystone
Prison Guard (uncredited)
Sam Ash
Druggist (uncredited)
Harlan Briggs
Defense Attorney Parker (uncredited)
Stanley Brown
Bob Roberts (uncredited)
Flo Campbell
Housewife (uncredited)
John Dilson
King - City Editor (uncredited)
Carl Faulkner
Bailiff (uncredited)
Boris Karloff
Dr. Henryk Savaard
Lorna Gray
Janet Savaard
Robert Wilcox
'Scoop' Foley
Roger Pryor
District Attorney Drake
Don Beddoe
Lieutenant Shane
Ann Doran
Betty Crawford
Joe De Stefani
Dr. Stoddard
Charles Trowbridge
Judge Bowman
Byron Foulger
Lang
Dick Curtis
Jury Foreman Clifford Kearney
James Craig
Juror Watkins
John Tyrrell
Juror Sutton
George Anderson
Prison Warden (uncredited)
Stanley Blystone
Prison Guard (uncredited)
Sam Ash
Druggist (uncredited)
Harlan Briggs
Defense Attorney Parker (uncredited)
Stanley Brown
Bob Roberts (uncredited)
Flo Campbell
Housewife (uncredited)
John Dilson
King - City Editor (uncredited)
Carl Faulkner
Bailiff (uncredited)