A teenage girl accuses her primary schoolteacher, Jean Doucet (Jacques Brel), of trying to rape her. The police and the mayor investigate, but Doucet denies the charges. Two other students come forward to reveal more of Doucet's misconduct – one confessing to be his mistress. Doucet faces trial and hard labor if convicted.

The young heroines are the "Petits Rats de l'Opéra" =pupil of the opera of Paris ballet class .One of them,Delphine,wants to be a ballerina.It's her wildest dream.But alas,in the wake of a night on the roof of the opera -a forbidden place- ,she is fired -and however she was not alone on that roof,her friends were with her!Delphine is desperate and she hides the terrible truth from her mother .What will become of her?

A three part film, based on the novel of the same title by Victor Hugo, telling of the adventures of two children, a blind girl and a badly scared boy, who are rescued and looked after by a vagabond.