Wrongly suspecting her husband of being unfaithful, a young mother leaves him alone for a week with their three unruly children.

10-year-old Saïd, a child of Algerian immigrants, is talented, motivated and would like to be a good student. But the conditions at the collège he attends in the Parisian banlieue hardly give him a chance. And then he is drawn into the criminal machinations of his brother.

An ecological pharmacist uses ancient Celtic techniques to murder industrial magnates whose practices harm the planet.