At the Institute, Henri spends a stormy day in the presence of his patients. At Simone's request, Laure goes to the police station. The meeting suddenly becomes very intense and has serious repercussions for his brother Toby. A reversal in the investigation particularly concerns Henri, whose certainties crumble one by one. Anne did not tell him everything. Simone is there to support her as she herself sees her personal life fall apart.