Detective Bill Harney's on the hunt for a serial killer who has abducted five teenage girls - perfect for fans of Harlan Coben. FIVE VICTIMS. ONE KILLER. When five teenage girls are abducted, Chicago PD Detective Billy Harney leads the investigation to find them. Harney and his partner, Carla, follow a lead to a remote house, only to find themselves caught in a deadly trap. A huge explosion rips through the building, killing Carla and allowing the kidnapper to escape. With the loss of his partner fuelling him, Harney strengthens his resolve to find her killer - and to make sure the body count ends there.