Killing code. J. D. Kirk. 2019.

How do you catch a killer who doesn’t exist?

After twenty years on the force, Detective Chief Inspector Jack Logan thinks he has seen it all.

He is wrong.

When a nurse is murdered on her way home from a night shift, Jack and his team go on the hunt for her killer.

As more victims are uncovered, Jack finds himself tracking a murderer afflicted by a unique psychosis - one that leaves home free to maim and kill without a shred of guilt or remorse.

Facing a new type of criminal in an unfamiliar city, is DCI Jack Logan about to be pushed to his limits by an enemy he cannot hope to understand?