If Commissioner Schneider is known for his composure, his calm is only apparent. By dint of seeing the border between humanity and inhumanity blur endlessly, he has indeed ended up realizing that the evil he is fighting is not only outside. The fight he leads against his own dark side sometimes takes unexpected forms. When he sets out to investigate the case of a widow who has already buried four husbands, his motives are unclear. Is he acting solely for professional reasons? What are the deep reasons which push him to be interested in this mysterious woman? ..

One evening, in front of his fiancée, poker-ace Bunny is kidnapped by the stud team forcing him to play a game against a man he is forced to kill, despite himself. It’s just a stud maneuver, to keep him from stopping tournaments, as he intends. Schneider, who is investigating the murder, understands that the burglary of the enormous sums in money, in the middle of an international tournament organized by Stud, is Bunny's response to his mentor ... A burglary not at all appreciated by the big boss of the gaming circles for which he works Stud and who even complains about it to Schneider. And Tourneur is struggling with the Police, because his friend, owner of a nightclub, is accused of procuring ...