- Directors: Charles Vidor
- Producers: Virginia Van Upp
- Writers: Screenplay, Jo Eisinger, Marion Parsonnet, Story, E A Ellington
- Genres: Drama, Film-Noir, Romance, Thriller
- Actors: Rita Hayworth, Glenn Ford, George Macready, Joseph Calleia, Steven Geray
In Buenos Aires, Argentina, small-time hood Johnny Farrell (Glenn Ford) plays craps and wins a lot of money. He is then rescued by stranger Ballin Mundson (George Macready) from a robbery attempt. Mundson invites him to an illegal high-class casino, but warns him not to try cheating there. Farrell ignores his advice and cheats at blackjack and is taken by two men to see the casino’s owner, who turns out to be Farrell’s earlier benefactor, Mundson himself. Farrell talks Mundson into hiring him and quickly earns his confidence. However, the judgmental washroom attendant, Uncle Pio (Steven Geray), keeps calling him “peasant”.
One day, Mundson returns from a trip with a beautiful new wife, a singer, Gilda (Rita Hayworth). Unaware that she was once Farrellâ€™s lover, Mundson assigns Farrell to keep an eye on her. Farrell keeps track of her cavorting with men at all hours of the night, his loathing for her intensifying.
Meanwhile, Mundson is visited by two Nazis. Their secret organization had financed a tungsten cartel, with everything put in Mundson’s name to hide their connection to it. However, when they decide it is safe to take over, Mundson refuses to transfer ownership to his backers. The Argentine secret police are interested in the Germans; agent Obregon (Joseph Calleia) introduces himself to Farrell to try to obtain information, but the American knows nothing. The Nazis return later, with no better results; Mundson shoots and kills one of them.
At that moment, Mundson reappears, armed with a gun. He had faked his death to deceive the Nazis, parachuting out of the plane undetected. Mundson tells them he will have to kill them both, but Uncle Pio manages to fatally stab him in the back. Obregon shows up and confiscates the estate for the government. Farrell and Gilda are free to leave the country.