Franka Kehlmann tracks a serial killer who takes his victims through the Gehenna of their worst nightmares.

Franka Kehlmann started out with a shining career in finance. When she joins the world of crime there is nothing to predict that she will find her place in Commandant Carat’s section. As a protégé of Chief Superintendent Christine Santini, she will have to prove herself in the field.

The martyred body of a nurse is found in a Parisian warehouse : the victim has been chained up and tortured to death, adn her tongue torn out. But the killer has carefully prepared and laid out the body post-mortem. The torturer’s obsessive profile suggests he will not stop there...