When an international casino crime ring is planning a big score at a fixed roulette game, the casino police enlists the help of Jeff Miller, an alcoholic croupier, to nab the bad guys. Jeff is attracted to Laura, a singer at the casino, but she prefers the company of the leader of the thieving casino ring.

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Main Cast: Laurence Harvey, Ann-Margret, Ivan Desny, José Calvo, Camilla Horn, Andrea Bosic, Alberto de Mendoza, Luis Morris, Luis Dávila, Milo Quesada

Director: Nino Zanchin

Writers: Juan Cesarabea, Leonardo Martín, José Gutiérrez Maesso, Sergio Donati, Pietro Catella, Mario Rossi

Editor: Eugenio Alabiso

Cinematographer: Cecilio Paniagua

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