The victim's father is so intent on controlling the investigation that Alex and Milo start to wonder if he wants to bring out the truth or make sure it stays buried. Then there is another killing, and within days Alex finds himself ensnared in one of the darkest, most menacing cases of his career. An obsessed killer, who takes as much pleasure in matching wits with the police as in robbing human life, all in the name of science, is still on the loose.

Driven to find answers, Alex and Milo work closely with Inspector Daniel Sharavi, the brilliant Israeli police detective. In the end, though, it is Alex who will go undercover, alone, to expose the smug brutality of a murderous conspiracy and a terrifying contempt for human life. In Survival of the Fittest, Jonathan Kellerman draws one of the most chilling, frighteningly realistic portraits of evil you will ever listen to.