DI Nathaniel Caslin is stable, for the first time in years. Now, he can look to the future, or so he thought. Granting a small favour to a friend, can often be anything but simple... When the only link between two apparently random murders appears to be an aging, Catholic priest, Caslin is thrust into a world of long-buried secrets. Drawing unwanted attention from the intelligence services, he must consider if the man he once trusted above all others, is now playing by his own rules. With professional killers circling, Caslin must face uncomfortable truths about those seeking redemption. Sometimes, justice is best served from the wrong side of the law. With the net tightening, the level of threat increases. Will Caslin, along with those closest to him, be the last victims of a forgotten conflict?