"New York has been shaken by a series of ritual murders. Wealthy people die in mysterious circumstances, and the victims seem to have no traits that could link them in a logical way. Murders are committed with a strange tool, and the victims have their hearts removed. A young female FBI agent, Nicole Bonnet, is assigned to the case. She is supposed to assist an older, more experienced colleague, but it quickly turns out that Bonnet will have to accept more responsibility for this investigation. What are the culprit's motives? What links the victims? What is this mysterious tool? Why was such a young and inexperienced agent given the case? In her search for clues, Nicole will visit the darkest corners of New York as well as the archaeological capital of the world - the Peruvian Cusco - and the Amazon jungle."