Bob, a suave and aging gambler with a code of personal honor, is well-known in the seedy underworld of Paris. Living in Montmartre, he spends his nights in casinos and his days planning his next big score. Despite his criminal past, he has an air of respectability and is admired by many in his circle. Bob's luck has been poor lately, and he finds himself needing a substantial win to maintain his lifestyle. One evening, he learns of a once-in-a-lifetime opportunity: the impending transfer of a vast sum of money at the Deauville casino. Enticed by the idea of pulling off one final heist, he begins meticulously planning the robbery with help from his loyal protégé, Paulo, and a young wayward girl named Anne, who becomes entwined in their scheme.

As Bob assembles his team and lays out the intricate details of the heist, he ensures that every aspect of the plan is flawless. However, tensions rise within the group as doubts and suspicions grow, complicating their collaboration. Unbeknownst to Bob, the police are closing in, aware of his potential involvement in criminal activities. Meanwhile, his rivals in the underworld are also keeping a close watch, eager to see him fall from grace. The pressure mounts as they approach the fateful night when everything will come to a head at the Deauville casino. The success or failure of the heist hinges on split-second decisions and trust among thieves, leading up to an inevitable confrontation governed by fate and chance.