Jean-Pierre Gattegno

A mediocre pulp novelist is approached by a stranger claiming to be a serial killer with a proposition to chronicle his crimes. (imdb)

Michel, a psycho-analyst, falls asleep while listening to his patient Olga, a kleptomaniac and a sexual pervert, tell him how she likes her husband beating her. When he wakes up, he finds Olga having been choked to death. He now has to deal with a body, with Olga's rich husband who thinks she stole money from him, and with all his patients' insanity that haunts him. (imdb)

The story of a Parisian psychiatrist (Auteuil) who is treating a patient who confesses to having killed his wife. At first the psychiatrist lends little credence to his unusual client but as events unfold he has to take him "dead" serious. (imdb)