It almost seems like this is going to be my Jean-Christophe Grangé year, but to be honest, his books are addictive and this one is no exception.
Grégoire Morvan, grey eminence of the French Ministry of the Interior, was successful in the seventies with lucrative business deals in the Congo. And he caught the notorious killer Homme-Clou there, who in his time murdered nine people following a bestial ritual. When a dead man is found at a Breton military school, his gruesome disfigurement resembling Homme-Clou's modus operandi, and Morvan's family is acutely threatened, he must use all means to confront the shadows of a past that has never ceased to thirst for blood. He enlists his son Ewan, who is a detective superintendent in Paris, for this purpose. Ewan, knowing full well that his father is 'dirty', threatens to expose him.
This is not only about catching a murderer, but also about the father-son relationship, which is on very shaky ground. ( )

Erwan Morvan comme son père est policier et il cherche le meurtrier qui imite l’homme-clou arrêté par son père il y a plus de 40 ans. Il découvre que son aide policier Kripo qui est le tueur en série. Mais il soupçonne son père pour la dernière femme (9e) assassinée par le 1er ( )

Belle narration. Beau suspens. ( )