A man is murdered in Laguiole, Aveyron, Aubrac country. The young Elisabeth Richard, deputy prosecutor of Rodez, is handling the case. She has to deal with the hostility of a police officer, promoted on his own strength and not keen on the idea of being subjected to a young woman. Elisabeth especially has to unravel the tangles of ancestral antagonism and family secrets in order to unmask the culprit. The film is both a criminal investigation and a social painting.

Elisabeth and Paul investigate the murder of a tour guide in a cave.

A young lawyer's murder rocks Aigues-Mortes and triggers the re-opening of a cold case.

Elisabeth Richard, a district attorney, and Paul Jansac, a police officer are in charge of the investigation of the death of Pierre Saint-Florent whose corpse was found in a beach near Martigues.

Maussane, at the very heart of Provence, with its olive trees and its charming squares. Deputy prosecutor Elisabeth Richard and local police commander Paul Jansac are investigating the murder of Caroline Autiero, wife of an old mill-owner.

Prosecutor Elisabeth Richard teams up with Captain Charles Jouanic to investigate the death of a hunter.

Elisabeth and Charles search for a link between three very different murders.

Marie Lemaire is poisoned during a dinner that brings together an association of merchants. She is the heiress of her recently deceased husband, François, who was the owner of the largest glass factory in the city. All the guests are potential suspects and the investigators must sort out the real from the fake, detect motives and verify alibis. Olivia Rousseau, one of the guests, ex-mistress of François Lemaire who left her to marry Marie, is dead at her home. In a letter, she declared that she had poisoned Marie and killed herself in the same way.

Sébastien Lacassagne, 35, owner of a wine estate, was assassinated with a statuette in his house. The investigation conducted by Prosecutor Elisabeth Richard and Captain Caroline Martinez reveals many gray areas in the victim's life.