1949年的法国乡村，音乐家克莱门特（热拉尔·朱尼奥饰）到了一间外号叫“塘低”的男子寄宿学校当助理教师。学校里的学生大部分都是难缠的问题儿童，体罚在这里司空见惯，学校的校长（弗朗索瓦·贝莱昂饰）只顾自己的前途，残暴高压。性格沉静的克莱门特尝试用自己的方法改善这种状况，他重新创作音乐作品，组织合唱团，决定用音乐的方法来打开学生们封闭的心灵。然而，事情并不顺利，克莱门特发现学生皮埃尔·莫安琦（让-巴蒂斯特·莫尼耶饰）拥有非同一般的音乐天赋，但是单亲家庭长大的他，性格异常敏感孤僻，怎样释放皮埃尔的音乐才能，让克莱门特头痛不已；同时，他与皮埃尔母亲的感情也渐渐微妙起来。

巴黎一连发生多起血腥暴力事件，一时间整座城市陷入了极度恐慌之中。巴黎警界两大部门BRI和BRB公开角力，势要将连番犯案的悍匪绳之于法。然而两支队伍的办事风格迥然各异，空缺的36总局局长位置也成了他们残酷竞争的导火索。BRI的首席警官莱奥（丹尼尔·奥特尤尔DanielAuteuil饰）不惜帮线人隐瞒杀人犯罪的事实来获取情报，而BRB的首席警官丹尼斯（杰拉尔·德帕迪约GérardDepardieu饰）更为了能亲手抓住劫匪以谋求权位而不择手段，伺机寻找机会整垮莱奥。终于，丹尼斯将莱奥告发，莱奥被判处8年监禁，妻子也因此丧命。失衡的道德线，罪恶背后的真相，刑满出狱的莱奥决定向丹尼斯展开不顾一切的复仇。根据真实事件改编的《警界争雄》荣获2005年第30届凯撒奖最佳影片在内的多项提名，成为2005年法国全年十大卖座电影之一，被称为法国版《无间道》。

For the originality of its content and manner of telling, Gael Morel's "Le Clan" deserves wide art-house distribution. It does, however, need a better English title. Life may be difficult for people in the film, but they are not slaves and make choices that attempt to better their situations, if not always happily. Why not simply "A Clan," since nobody remembers Griffith's second title for "Birth of a Nation," or "Brothers"? Two boys practice a North African "slave dance," but for sport and release. 　　The tightly edited movie can be thought of as short stories about three brothers and their father. With rapid shifts we keep learning new things about the characters. Sometimes one wonders what went on during a gap, but usually one can figure it out and the dialogue that would have worked it through would have been sentimental and out of character. 　　One shot of the brothers huddled together watched by their father is difficult to justify realistically, but it works as a symbolic representation. If meanwhile one wants everything spelled out and sweetened, there is the Québec film "C.R.A.Z.Y." The brothers do maintain enormous familiarity. The youngest one, very drunk, is helped by a brother to vomit. 　　If that's shocking, we have to take it as a fact of the milieu. The banlieux of France have recently been in the news. "Le Clan" goes much further with stories that lead one to care for the characters in the variety of their difficult situations of social derogation, dangerous labour, sexuality, and self-esteem.

电影发生在森林审处的一作女子寄宿学校,这所学校的房子散落围绕着一座大森林,不同年纪的女孩以不同颜色的头丝带区分.她们也和同龄人一样,通过舞蹈,自然课了解对于她们来说很遥远的外面的世界.每天晚上深宵时分,年长的女孩都会不约而同沿着小路走向森林深处........