Alex Jarrod is a war veteran. When a flesh-eating parasite destroys his face, he returns from Afghanistan with a head full of nightmares. His world crumbles around him until he realises there is work to be done. Another war to fight.

DI Rosalind Kray has her hopes pinned on becoming the new DCI after tracking down another serial killer, but those in charge have other ideas.

After a small-time crook is killed in a hit and run and a serial burglar is brutally murdered, Kray suspects a vigilante is at work. But her bosses disregard her theory - until they discover a third victim.

Once again Kray finds herself on the trail of a serial killer but this one is different. This one lives in his own private war zone.

With her bosses on her heels, Kray has her work cut out and the body count is rising.

But he's not going to stop until the mission is complete … and Kray's not going to stop until she finds him.