François is the manager of a commercial bank. On his 50th birthday, when he is expecting a deserved promotion, his superiors lay him off: he's too old now. When he gets home to announce the news to his wife, he finds her in bed with her young lover. Distraught, humiliated, cuckolded, François wants revenge. He finds a solution with the help of a coach, Ariane, 30, who in fact wants to be a "coach" and ... needs a guinea pigs. François gets a makeover, hangs out with young people, sculpts his body and gets rid of his old habits. François is 32 now. He has seen his future... and its work! For a time... not too long!