While in London trying to nab several fugitives who stole a million dollars from a U.S. Treasury vault, American federal agent Dennison (Dennis O'Keefe) assists Scotland Yard Insp. McClaren (Philip Friend) in his search for a missing atomic scientist (Paul Hardtmuth). The detective duo discovers that the key to solving both cases may rest with the scientist's daughter (Margaret Sheridan) and her fascinating diamond.

• DirectorDennis O'Keefe
• Release1 April 1954
• Genre
  Thriller / Drama
• Duration1h 23m
• Budget?
• Revenue?
• Rate
  

  5.9
  9 reviews
• Productions

  Gibraltar Films Ltd., Gibraltar Productions, United Artists