Bob, the titular gambler, and the police chief of the post-war Parisian red light district of Montmartre, have a history. Allegedly, Bob had once pushed the chief out of the way of a bullet, ultimately saving his life during a heist bust Bob would then go to jail for. Intermittently, these two characters make vague references to their shared past. Both men are of the World War II generation and are aging into a reconstructed society. Though the moral ambiguity of Bob and the sympathy of the police chief are never unraveled, their mysterious relationship gives this early Melville film surprising depth.
Bob’s unaddressed addiction is a stand in for several vices in the underworld and fatefully lures young Paolo and Annie into his circle. If the cause is WWII related, whether from a collaborative or resistive past, it is fitting that he is in part brought down by the negligence of these youths. These kids admire Bob’s slick confidence but they can’t comprehend the implications of Bob’s behavior. By the end Bob gets Paolo killed, leaves Annie alone in the underworld and is off to jail. No one wins every gamble. Moreover, one senses that things are starting to change a little too fast for people like Bob; the generational variables are getting too hard to manage. It will only be a matter of time before some kids wiser than Paolo and Annie decide to take matters into their own hands.
This is all 1956, pre-French New Wave and before Melville settled into the restrained mode of cool that defines his later masterworks. The cinematography by Henri Decae is fully formed and would sow the seeds of the French New Wave over the next 5 years.