Thriller Drama Crime Sci-Fi
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.
Directed by
Montgomery Tully, Dennis O'Keefe
Written by
John C. Higgins
Dennis O'Keefe
Joe Dennison
Francis de Wolff
Yeo
Gudrun Ure
Sgt. Smith
Margaret Sheridan
Marline Miller
Alan Wheatley
Thompson Blake
Paul Hardtmuth
Dr. Eric Miller
Colin Tapley
Sir Stafford Beach
Cyril Chamberlain
Castle
Philip Friend
Insp. McClaren
Eric Berry
Hunziger
Seymour Green
Lascelles
Michael Balfour
Hoxie

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