Daniel Ray, a serial killer specializing in high-worth older couples, has struck again. His first murder as an adolescent was a way to survive, to keep his own demons away; but now hunting is his way of life. Two detectives connect the dots and discover they are dealing with a serial killer. The stakes are raised. Daniel is now being hunted by Detective Bobby Collins, a recovering alcoholic, and his partner Detective Alex Hollander of the Phoenix Homicide Division. Daniel Ray made a mistake that allowed the dots to be connected for which he is still furious with himself. In pursuing the serial killer, the detectives get some insights and help from Detective Collins' old treatment counselor. As they get closer, Daniel Ray decides it's time to go back onto the ocean, back to the cruises where he hunts and finds his victims. But during this last cruise of his life, something occurs that he never planned for.