Vincent is about to become a father. At a meeting with childhood friends he announces the name for his future son. The scandalous name ignites a discussion which surfaces unpleasant matters from the past of the group.
A father-to-be and his very pregnant wife are invited for dinner by his sister and his brother-in-law. The setting is an upper-middle-class apartment in Paris. When the expecting parents reveal they intend to name their son "Adolphe", everyone else at the dinner is speechless. The situation eventually gets out of hand, when no one can come to an understanding, and everyone starts unearthing old rivalries and unspoken issues.