The world-renowned forensic pathologist and serial killer hunter Dr. Elliott Sumner attends a Christmas gala at the mansion of billionaire patriarch Albert Bell. Elliott watches the "Bluff City Butcher" die, moments after learning that they are brothers.
Elliott's worst fears are confirmed when attempts on his life soon reveal that he too was part of an inconceivable genetic experiment, and his termination has been ordered.
From the shadows, in a battle for his survival, Elliott hunts a new kind of serial killer and moves at lightning pace to uncover the clandestine power brokers behind it all.
Will the blood trail from Barcelona through Arequipa and back to Memphis, Tennessee, lead to a new reign of terror? Or will bold deceptions and chilling twists be more than any one man can handle? Will Elliott find a way to secure the greatest evolutionary leap for mankind?