Bob the Gambler has decided to give up his business in order to enjoy his hobby: gambling. However, he cannot refuse one last job proposed by a friend: to take part in an amazing raid on the Deauville casino. But that day, seeing the gaming rooms, Bob is riveted by a gambling table where he wins in an unabashed fashion, and he forgets about his role in the well-planned hold-up. Consequently, he ends up causing both himself and his accomplices to be arrested by the police.