Arnaud Mustier, lawyer and brilliant philosopher, arouses the annoyance of his younger brother Jules, age sixteen. One day, Arnaud is a victim of a late adolescent crisis. Helped by Jules, he is going to catch up this phase of the life which he did not live.
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.
Bo is a transexual prostitute in Brussels who left home after being abused by her father. She's infuatuated with a neighbor and suspected by the police in a series of transexual murders. In order to clear herself she must turn detective.
