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.

Nicolas has a happy existence, parents who love him, a great group of friends with whom he has great fun, and all he wants is that nothing changes. However, one day, he overhears a conversation that leads him to believe that his life might change forever, his mother is pregnant! He panics and envisions the worst.