Luka, singer-guitarist of Orly Sud underground rock band in the 1990s, ten years later became the king of the new French pop-rock scene by appropriating the songs of a blue notebook fell from a low cover while looking for pictures of his former band. He thinks that these are the songs of his friend Thomas, former bassist Orly Sud disappeared for several years. One day, Thomas reappears ... So start with Luka three days of ordeal during which he must conceal his immense celebrity. He then decides to convince Thomas that he is still at RATP controller and his luxury home and its Mercedes-Benz owned his freeloading Francis buddy blundering, Mime roommate who struggles to break and that Luka posing as a "comedian full of loot."