Manue is once again tested by the investigation. This time, the investigations focus on her nephew, Quentin Germain. The investigation unearths a dark story that pitted Nour against the teenager. Manue discovers with horror the dark side of this boy she saw grow up. Heir to a wealthy family of breeders in the region, Quentin presents a disturbing profile that makes him their number one suspect...

While Manue and Johanna are removed from the investigation, David Levy orders a reconstruction to determine the responsibilities of each. The teenagers replay the drama in front of the police. Estranged since their children were accused, Manue and Johanna will have to unite to discover the identity of Nour's murderer.