Mars (François Damiens) is an unknown little programmer who goes to get off work and comes home to eat and sleep on time. He spends every day in a routine manner. Mars, who has a very ordinary personality, never leaves a deep impression on people, so it is difficult for his superiors to reuse him in his position. Unlike Mars, Mars' wife Miriam (Léa Drucker) is a thorough workaholic who spends all her energy on her job all day long. As a result, the responsibility of taking care of the two children, Sarah (Jeanne Guittet) and Gregoire (Tom Rivoire), falls on Mars' shoulders. Mars has no way to deal with these two children. Like her mother, the eldest daughter Sarah is always immersed in her own world and stays at home all day. And Gregoire suddenly announced one day that he was going to become a vegetarian.