While the gendarmes believe they have the culprit for Grégory's death in the person of Bernard Laroche, their witness reconsiders his confession, which seems to bring the investigation to a standstill. But new unexpected witnesses quickly bring to light a new theory...

The gendarmes were removed from the investigation and replaced by the Nancy SRPJ, led by Commissioner Corazzi, convinced of the guilt of Christine Villemin, the child's mother. Feeling abandoned by everyone, Jean-Marie plans to take justice into his own hands...

The noose tightens around Christine Villemin while Jean-Marie must face the consequences of his act. The media coverage of the affair became even more spectacular when the prestigious Marguerite Duras was invited to go to the Vosges and published a column...