An international criminal arrives in London, and a detective is anxious to pin something on him for some unprovable murders of former lovers. The villain starts to suspect servants and henchmen of being a police spy known as "Number Six".
Charles Valentine
Nadia Leiven
Det. Supt. Hallett
Jimmy Gale
Carol Clyde
Weiland
Luigi Pirani
Smith
Assistant Commissioner
House Agent
Det. Sgt. Waters
Lotte
Head Waiter
Mrs. Pirani
Waiter
Director
Original Story
Screenplay
Producer
Original Music Composer
Director of Photography
Editor
Casting Director
Art Direction
Hairdresser
Makeup Artist
Production Manager
Assistant Director
Sound Recordist
Sound Editor
Camera Operator
