A disillusioned ex-cop is drawn back into danger in this “rock-solid series debut” by the New York Times–bestselling author of the Dexter novels (Booklist).
 
When a hostage situation turns deadly, Billy Knight loses everything—his wife, his daughter, and his career in law enforcement. Devastated, he heads to Key West to put down his gun and pick up a rod and reel as a fishing boat captain....

Forensic analyst and nighttime vigilante Dexter Morgan discovers that he is being followed by a killer who is copying his methods, an adversary whom Dexter seeks to outmaneuver using his trademark knack for extricating himself from trouble.