Synopsis
Industrialist François Delambre is called late at night by his sister-in-law, Helene, who tells him that she has just killed her husband. Reluctant at first, she eventually explains to the police that he invented a matter transportation apparatus and, while experimenting on himself, a fly entered the chamber.
Cast

David Hedison
Andre Delambre

Patricia Owens
Helene Delambre

Vincent Price
François Delambre

Herbert Marshall
Insp. Charas

Kathleen Freeman
Emma

Betty Lou Gerson
Nurse Andersone

Charles Herbert
Philippe Delambre

Eugene Borden
Dr. Ejoute (uncredited)

George Calliga
Club Member (uncredited)

Harry Carter
Orderly (uncredited)
Bill Clark
Policeman (uncredited)
Arthur Dulac
French Waiter (uncredited)

Bess Flowers
Audience Member (uncredited)
Herschel Graham
Club Member (uncredited)

Torben Meyer
Gaston (uncredited)

Sol Murgi
Audience Member (uncredited)

George Nardelli
Detective (uncredited)
Franz Roehn
Police Doctor (uncredited)

Charles Tannen
Doctor (uncredited)
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