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Chamoun (Michel Constantine) and his wife May (Senta Berger) arrive in the desert and take up residence in an abandoned house. Sheriff Brade (Hans Meyer) is suspicious of the couple and their beer-drinking mule. He discovers the woman is hiding out from the mafia after killing a gangster. Fearing retaliation from the mob, their solitude is interrupted by a visit from a crook who has stolen some diamonds. Chamoun agrees to help the criminal Kalne (Julian Mateos) if he gives him half of the loot. As two policemen watch the house, Kalne and Chamoun try to double-cross each other out of the diamonds in this crime drama that ends in tragedy.