Louise Venturi is arrested for murder. But Justine and Vanessa quickly discover that the young woman's arrest hides a formidable ploy. Despite its indictment, it has legal access to the file in which those it considers responsible for the death of its twin brother are cited. Louise is finally released...

In a bar, Vanessa surprises the conversation of a woman talking about her lover, who boasts of having camouflaged the murder of her wife in a domestic accident. She succeeds in identifying the man in question, a manipulative and disturbing psychiatrist. However, to investigate the matter, Justine needs evidence, when there is no complaint and the woman in the bar does not seem to realize what danger she runs while staying near him. How can a victim who is not aware of it understand that a psychological hold can be as fatal as physical violence ?