Autumn 1981. Bernard Hettier meets up by chance with Simone Weber, whom he had met twenty years earlier. After a few months of passionate romance, Simone's jealousy becomes unbearable, and Bernard decides to break up with her. From then on, he is watched and harassed by Simone, who will stop at nothing to win back her lover.

On June 22, 1985, he disappeared.

Nancy examining magistrate Gilbert Thiel was put in charge of the case. Suspicions quickly fall on Simone Weber, whose ambivalence, acute intelligence and violence the magistrate soon perceives...