The police of a Child Protection Unit squad try to maintain their sanity and their home lives without being destroyed by their work, tracking paedophiles, arresting parents suspected of mistreating their children, following teenage pickpockets, runaways or those sexually exploited, helping in the protection of homeless children and the victims of rape. In moments of relaxation the squad gossip, quarrel, drink, dance; relationships tremble, break and are remade or newly made. Their boss is a political policeman, not wholly sympathetic to the demands of their consciences, and ready to tighten the leash if the man they are questioning has powerful friends. At the centre of the story is a hard-edged, bitter yet tender policeman (Joeystarr) and a photographer (played by director Maïwenn) whose assignment is to follow the squad in their work.