After his father is killed, Djilali is sold by his family to a Lebanese terrorist group. After completing a grueling training process alongside five other boys, Djilali is chosen for a special assignment and sent to Paris to live with carefree Arab boy Karim, who is scheduled to meet the French president at a Christmas party. Djilali's mission is to impersonate Karim and kill the president, but his growing friendship with the happy youth gives him pause.
Robert Millard has based his industrial kingdom - based on all the noise technologies - thanks to his marriage with the wealthy and cantankerous Irene, he blithely cheat for years. However, his last link with his pretty secretary, Eve, is the straw that broke the camel : Irene has indeed hired a detective-photographer, aptly named M.Colle order to have a maximum of incriminating shots. Threatened to divorce and thus to total ruin by his wife, the unfaithful husband should give up and dismiss Eve.
To be closer to his children following his divorce, Laurent Monier, a history and geography teacher in a peaceful provincial high school, accepts a position in a sensitive college in the Paris suburbs. He is assigned the hardest class, the fourth techno, and he finds an apartment in the Cité des Muriers, a particularly difficult district.
