The whole Bélier family is deaf, except for sixteen year old Paula who is the important translator in her parents' day to day life especially when it comes to matters concerning the family farm. When her music teacher discovers she has a fantastic singing voice and she gets an opportunity to enter a big Radio France contest the whole family's future is set up for big changes.

With only 12 percent of its pupils obtaining their baccalaureate, Jules Ferry High School is the worst school in France. The Inspector of Schools has already exhausted all the conventional means to raise standards at the school and he has no choice but to take the advice of his deputy. It is a case of having to fight fire with fire: the worst pupils must be taught by the worst teachers...