Marceau Léonetti, a competent and energetic officer stops by chance the son of an influential lawyer driving under the influence of alcohol. A few months later, the lawyer falsely accuses Léonetti as being violent and incompetent. As a result Marceau is transferred to a small police station, where he meets young and beautiful Jeanne. Soon they are faced with a tough investigation.
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.
Making his directorial debut, Robert Hossein also assumes the leading role, playing an escaped convict. Hossein and his fellow escapees cross the path of Marina Vlady, with whom they all fall in love. Alas for our "heroes," Vlady intends to avenge the death of her sweetheart at the hands of Hossein and his confreres. Not only do these heels go to Hell, but they do so with a spectacular flourish. Les Salauds Vont en Enfer was adapted by Rene Wheeler from a play by Frederic Dard.
