Pierre Niémans and his assistant Ivana Bogdanovitch, from the central blood crimes office, are sent to Alsace for a new investigation. A homicide took place within a religious community which lives, on the model of the Anabaptists, from its farms, and in particular from its prestigious vineyard. In a world of pure innocence, what could a killer's motive be? In a sinless community, how can blood flow? Unless, on the contrary, the culprit is the only innocent in the community. Fluid plot, sharp suspense and cold sweats at the key. Jean-Luc Wachthausen, The Point.