In "Au coeur du mensonge" (literal translation "At the heart of the lie", English titel "The color of lies") a 10 year old child is killed at her way home from drawing lessons. Because the painter that gives these lessons (René Sterne played by Jacques Gamblin) is the last who saw the child alive he is the main suspect of not only inspector Frédérique Lesage (played by Valeria Bruni Tedeschi) but also of the rest of the village.
"Au coeur du mensonge" fits in the tradition of films in which people are condemned by a crowd in stead of by a judge. An old example of such a film is "Fury" (1936, Fritz Lang) but a more recent example (even younger than "Au coeur du mensonge" itself) is "Jagten" (2012, Thomas Vinterberg).
Initially I found the similarities with "Jagten" very strong, and it was only on closer inspection that I discovered some not unimportant differences.
In "Jagten" there is no real crime, only an accusation. The filmviewer knows this but the people in the village of course not. In "Au coeur du mensonge" on the other hand there is a real crime but no specific accusation. René Sterne is suspect because he is the last one who has seen the victim alive.
In "Jagten" the crowd turns violent on the accused. In "Au coeur du mensonge" the village "only" secludes the suspect.
In "Jagten" the conviction if the crowd is independent of the criminal authorities (just like in "Fury"). In "Au coeur du mensonge" the two run far more parallel because the new inspector Lesage is very eager to solve the case quickly in order to promote her own career.
From the first difference it follows that in "Jagten" it is clear from the very beginning that the accused is innocent while in "Au coeur du mensonge" the innocence of the suspect is in doubt until the very end, also for the viewer. After all Claude Chabrol was not called the French Hitchcock for nothing.
In "Jagten" Mads Mikkelsen gives a brilliant performance, In "Au coeur du mensonge" the performance of Jacques Gamblin is not inferior. His character René is a man that has acquired scars in an earlier phase of life. He tried to find a quiet life at the coast of Brittany and now is unable to defend against unspoken suscipions.
By the way the coastal landscapes of Brittany with their occasional fog greatly enhances the mood of this film.