In the picturesque family residence, as summer draws to a close, Monique marks her 70th birthday, joined by her four children who have gathered for the celebration. Jean-Pierre, the eldest, has assumed the position of family leader following their father’s passing. Juliette, expecting her first baby at 40, still harbors aspirations of becoming a writer. Margaux is the family’s avant-garde artist, while 30-year-old Mathieu is eager to win over the charming Sarah. Eventually, one of them will make a decision that alters the course of their life.