Michelle is enjoying a peaceful retirement in a Burgundy village, close to her longtime friend Marie-Claude. When her Parisian daughter ValĂ©rie drops off her son Lucas to spend school vacation with his grandma, Michelle, stressed out by her daughter, serves her toxic mushrooms for lunch. ValĂ©rie quickly recovers, but forbids her mother from seeing her grandson anymore. Feeling lonely and guilty, Michelle falls into a depression… until Marie-Claude’s son gets out of prison.