During a family meal, Cedric, 32, learns that his sister is expecting a baby. While the news is met with excitement by the whole family, for Cedric -who still lives with his parents, it resonates strangely, mixed with a certain resentment. During the family celebration, he attempts to establish, in front of everyone, the prejudice that he says he is the victim of. Between denial and paranoia, revolt and false pretences, how far is a family willing to go to keep its equilibrium?