A couple make the decision, after twenty-five years of marriage, to live separately, so as not to fall into the trap of routine. On their wedding anniversary, Brigitte and François Dupuis announce their decision to separate, to the chagrin of their children. After twenty-five years, they chose to enjoy their life, but each on their own. Everything is going for the best. François rediscovers the life of a bachelor, meals with friends, at night with friends. Brigitte, for her part, met a movie buff whom she took as a lover. From time to time, François and Brigitte meet again. It doesn't take long for them to realize that they get along better and better ...