There is always a victim and a villain. One of them deserves to die. One of them deserves to kill...
It's been two years since the events of The Art of Murder and Sean Mallon's hunt for Victor Crane has left him in a downward spiral to drink and drugs.
When a series of redemption killings shock the city, August pleads for Sean's help. Disgraced and downhearted, Sean is forced to contront a police force that see him as a pathetic has-been who can't do anything right. In a desperate bid to find his form of old, he fights his own lack of self-worth to help them find the killer.
But who is setting up these redemption killings? Why is it they so focused on redemption? And what does it have to do with Sean?
As events come spiralling toward a shocking climax, Sean is forced to confront his demons. But what happens when his demons decide to confront him...