Six months before his retirement from the criminal police, inspector Joss finds his colleague Gouvion dead, in a poorly faked suicide attempt. Joss loses his temper, and investigates on his own, which leads him through the bas-fond of Paris. 　　译文(2): 在从刑事警察部门退休前六个月，督察乔斯发现他的同事戈维恩死于一次拙劣的伪造的自杀企图。乔斯发了脾气，自己去调查，这使他对巴黎产生了一丝好感。