The adult son of François Heller-Devile, initially suspected of avenging his father's murder. He secretly marks the doors of neighbors to protect them from the killer, but due to psychological trauma and the grandmother's setup, he is wrongly convicted and sentenced to five years in prison.
Hervé's historical interpretations contribute to the investigation surrounding Damas.
Hervé helps interpret the plague symbols and messages during the investigation that ultimately concerns Damas's family and suspected revenge.
Marie and Damas are half-siblings connected by their father's legacy.
The plot identifies Marie as Damas's half-sister. Damas is the son who inherited their father's fortune.
Explore the full interactive character relationship map of Have Mercy on Us All