When Gordon Smash tries to get away with the loot from a successful diamond heist, his fellow conspirators shoot him in the back. Smash manages to get a clue to newspaper reporter Robert Foster, who sets of to retrieve the diamonds. Despite becoming a target for the rest of the gang, Foster prefers to rely on fashion model Arabella and news paper photographer 'Flash' instead of the more seasoned Inspector Chandler.
Claudio Brook
as Robert Foster
Daniela Bianchi
as Arabella
Sydney Chaplin
as Inspector Chandler
Jess Hahn
as Boris
Yves Vincent
as Felton
Paolo Gozlino
as Gordon Smash
Stefania Careddu
as Katia
Anthony Dawson
as Dr. Evans
Harriet Medin
as Dr. Evans' Assistant
Tina Aumont
as Dolly
Nazzareno Zamperla
as Flash
Jacques Herlin
as Actor at recital