Simone, a former rocker, is a dedicated homemaker who works in a city of the suburbs of Lyon. She deals especially with Robert, a former virtuoso accordion languishing in unemployment, and his five children. One day, Robert's wife left him to go to live in Paris with a Cop. Desperate, Robert decided to go to the capital to persuade her to come back. Meanwhile, Simone takes a few days of well-deserved vacation, went to Paris to visit her brother. She then finds herself in the same train compartment as Robert, and she discovered stunned on arrival at Lyon that his five children followed him. She must manage all this smala and can happily rely on the hospitality of her brother Pierrot (a transsexual, named now Rita), to take care of all these people. But Simone, who is secretly in love with Robert, will help him in his research and even get the opportunity to record an album with one of his old friends in the music business ...