French territory is threatened by a terrorist organization just before the presidential election. If the government doesn't answer its demands, programmed bombs will explode gradually on the national railway network. Despite the operation deployed by the anti-terrorist unit, the Home Office has no other choice but to call Franck Barrot, police superintendent well-known for his controversial methods, to neutralize the armed group. His investigation will lead him to the very top level of the terrorist organization: the government itself.

A seaside resort in the middle of winter, with its abandoned beach bars and rain-battered alleys, can easily flank the drone. Refugees on the top floor of a building in La Grande Motte, Carole and Richard Lazure have zero morale: swindled by their tax advisor and badly defended by an incompetent lawyer, they lost their business, their house and no longer even enough to buy the essentials. The eruption into their life of a childhood friend of Richard, a talkative talker with questionable dating, could be a game-changer - or make their situation worse.

根据弗朗西斯·扎姆波尼的小说改编。1995年，陆军退役上校拉乌尔·杜普朗在其巴黎住所被人暗杀，头部中了一弹。办案人员接到匿名人士的一封信，信中宣称：“上校死在圣阿尔诺”。
1957年，在阿尔及利亚东部的圣阿尔诺，年轻的军事法官基·罗西在杜普朗上校的手下办案。他在虐刑拷打和特别权力机构全速开动的机器中变成了刽子手，40年后，杜普朗上校遭到了报应。

He has shared our lives for 20,000 years. Along the way, he has helped us find food, kept our livestock, protected us from our enemies, guided us in extreme conditions, and saved us from peril. Now, he comforts us, relieving loneliness and helping us cope with old age. How did dogs come about?