Twenty-three-year-old Thierry Louvain Kills Olivier Margelle with a bullet through his heart. The murder is perpetrated at Valerie Lambert's. Valérie used to be Thierry's lover, so the murder is immediately labeled as a crime of passion. But when Thierry appears before the court one year later, he makes a stunning revelation : Valérie was a dope fiend and Olivier was her drug dealer ...