剧情介绍
根據阿雷西勒凱耶的小說改編，巴黎刑事組組長馬丁調查一樁七人死於巴士上的案件，另外，一名住在郊區的青少年和好友的媽媽通姦，兩件事有什麼關聯？
When seven innocent people are killed on a bus in central Paris, Martin learns that someone close to him is one of the victims. Due to his personal connection to the crime, Martin is prevented from taking on the case. But he can't leave it alone, convinced that the killer will sooner or later strike again.
