Amazon.com description: Product Description: Billy is an excellent killer: strategic, methodical, ritualistic. If only he knew what his victims looked like.Plagued with a rare disease that prevents him from recognizing faces, Billy is only able to identify his next target by using the photograph he carries in his pocket.Detective Kevin Byrne is assigned to a series of bizarre home invasion cases, and the closer he investigates, clues point to the fact that they are not random. When Assistant District Attorney Jessica Balzano gets assigned to the investigation, she finds herself once again working with her old partner Byrne. As their investigations circle Byrne's childhood neighborhood of Devil's Pocket, they find themselves revisiting a crime from Byrne's past that has haunted him for decades.And now, what Byrne witnessed as a child in Devil's Pocket could make him the next target on Billy's hit list.