Simon is 12 years old, but he is older than his age. Indeed, his father died and his mother works in a warehouse in the evening. The young boy takes very responsible care of his brother Melville and his little sister ÔEloise. Despite his age, Melville suffers from a slight intellectual disability. He is tall and fat and looks more like an ogre. But he is a very nice boy and without any malice. So when Melville is invited to a party by "his new girlfriend", the magnificent Emma-ZoÔe, Simon is almost jealous. However, when he learns that all the ugly and rejects from school are also invited to this strange party, he begins to worry. He forbids Melville to go to the party, but when he decides to disobey him to join Emma-ZoÔe, the dice are thrown.