Coline and André are in perfect harmony with their daughter Garance, and their son-in-law Harold. But when Garance breaks up with Harold, she instructs her parents to never see him again. The in-laws can’t come to terms with it: she dumped him, but they didn’t! They’re going to have to lead a double life in order to keep seeing their beloved son-in-law, hiding from their daughter, who is not going to leave them alone…