Graves Stone was the FBI's elite profiler, but a close call with a sadistic murderer lands him in the hospital with a diagnosis of "mental instability."

Now, seventeen months later, he is still recovering from his ordeal while a terrifying nightmare haunts his dreams. Stone receives a phone call from the head of the Miami FBI field office that plunges him back into profiling. But the copycat killer eerily mimics one of Stone's previous cases.

The new murders mirror the old ones to such a degree that Stone begins to doubt that they captured the real killer. As he scrambles to unravel the mystery of the copycat killer dubbed "Pointer," another serial killer-a female who murders Catholic priests and carves the word "Grace" into their chest-continues her killing spree. With the help of his psychologist friend, Dr. Toni Preston, Stone faces his fears and begins a cat-and-mouse game with "Pointer," who has already killed eight women.

As the pieces begin to fall into place about "Pointer," Stone realizes he has overlooked a crucial clue that will break the "Grace" murders wide open. But he is unprepared for the truth about the "Grace" killer, whose identity has remained an enigma through twenty-seven murders.