As Keeper of the Sins, Marcus Victor Amfortas has used his supernatural power and cunning to reclaim tainted artifacts and defeat his foes. But when a corrupted artifact was used on him, addicting him, Marcus is forced to break his covenant with the Church in order to resist the urge to succumb. In order to beat the addiction, he has to drink human blood, resurrecting his original addiction. Unable to call on his allies and denied his power, Marcus must face a mounting need, an army of Werewolves, and a would-be dictator. And the Unhallowed within him grows stronger by the hour.