A serial killer is targeting cops in a Chicago suburb, and Detective Joe Garrett is determined to discover his identity before another one of his fellow police officers is murdered. A hardened investigator, Garrett follows a string of murders spanning four decades, once every five years to the date. With his own personal problems, and the holidays closing in, Garrett discovers time is a more precious commodity than he ever anticipated. Every clue he finds seems to lead to a dead end. Choosing to research potential victims by riding with the patrolmen he figures are prime targets, the investigator befriends a salty officer, developing a unique