Max and Anna Mancini have been married for 25 years and have two teenage children. The two boys, although they are twins, are characteristically antipodes: Tina is rebellious and little studious; Nico is calm, lonely and has the obsession of video games. There is a constant war between parents and children, which reaches its peak on the day of the twins' 18th birthday, when the party at home, which had been granted to them, degenerates. Max and Anna realize they don’t know anything about those two teenagers, they wonder where they went wrong...
