Antoine a Union representative works in a financially troubled factory. He's not the sharpest tool in the box but he has a big heart and when he and his wife win the jackpot of the national lottery. Antoine will invest his gain to try and safe the factory.
Marc Elbichon, a novice private sleuth, is investigating a wave of assassinations bearing a particular characteristic: the perpetrator, dubbed the "telephone killer" always strangles his female victims with a telephone cord.
Martinaud, an illustrious notary suspected of being the perpetrator of two horrendous crimes, voluntarily agrees to be questioned by Inspector Gallien on New Year's Eve. What initially is a routine procedure, soon becomes a harsh interrogation that seems to confirm the initial suspicions.
Marie is nineteen and bored in her little suburban life with no future. In a café, she meets the charismatic and beautiful Gerard. Blinded by adoration, Mary decides to leave her parents and her clerk job to live with the man she considers as the love of her life. But Gerard is a pimp, who soon forces her into prostitution. From within homes to out on the streets, the young woman gradually discovers a world of decay and violence.