New York is shocked by a wave of ritual murders. Wealthy but seemingly ordinary citizens are murdered in mysterious circumstances. The victims are killed with a mysterious tool, the murderer removes their hearts. A young FBI agent - Nicole Bonnet - is assigned to accompany her more experienced partner, Nick, on this case. However, it quickly turns out that Bonnet will have to accept much more responsibility for this investigation.

What are the culprit’s motives? What is the link between the victims? What is the murder tool? Why was such an important case given to an inexperienced agent? Looking for the answers, Nicole Bonnet will visit the darkest corners of New York, the archeological capital of the world - Peruvian Cusco - and the Amazon jungle.