Movie by Jérôme Anger, made-for-TV, aired by France 3.

Eric Mercadier, 45, is a police Lt. at Lyon's SRPJ. He's been married to Anne for more than 20 years. But everything will change when he meets Dr. Emmanuel Rivière.

Here "autopsy" (which is the real French name of the movie) doesn't really refer to the post mortem examination (it does since the Dr. Rivière is a coroner) but can be divided in two : "auto" and "psy" which translated in English would mean "self psychology". If it can help understand the end of the movie...

Eric Mercadier - Stépahn Freiss (can be seen in the famous movie Bienvenue chez les Ch'tis (Welcome to the Ch'tis), another French movie)
Dr. Emmanuel Rivière - Thierry Neuvic (also seen in the Clara Sheller serie, playing a guy that can't really choose between a girl and her gay bestfriend)

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