Little Milo Kane has been found dead in the basement of his family home. His parents are two of the biggest names in Hollywood. The story's about to crack wide open. Sarah Reilly just brought down one of America's worst serial killers. Her father, FBI legend Harry Reilly, was kidnapped during the investigation, and the man she loved was murdered. Refusing offers of extended leave, Sarah launches herself back into her work in the Boston FBI field office.
A monster is cruising the east coast. One who has stalked the United States for three decades, claiming countless victims. A chameleon who has found a fatal flaw in the forensic profiler's art. At the same time, someone is hunting down and eliminating serial killers with mechanical precision. To save what is most precious to her, Special Agent Sarah Reilly will have to enter the maelstrom or face her darkest fears.