Natalie Black, the U.S. ambassador to the United Kingdom, has returned to Washington with her job--and her life--in jeopardy. Everyone chalks up Black's claims of attempts on her life as a ploy for sympathy after the death of her fiancé...everyone but FBI Special Agent Davis Sullivan.

Meanwhile, a cunning psychopath has escaped an Atlanta mental hospital and is out for revenge against the FBI, primarily Lacey Sherlock, whom his dying mother begged him to kill after Sherlock and Dillon Savich brought down her cult. The clock is ticking as the danger intensifies for both Black and Sherlock...