With new victims in his sights, the Hangman will stop at nothing to get his revenge, even if it means dragging Detective Jake Thomas down with him.

After making it personal, Jake is even more hellbent on solving the case, even if it means delaying his early retirement.

But when his only informant skips town and Jake finds most of the truth has been buried, not only with missing case files but in his own mind, can he and Detective Jo Calloway unlock the clues they need to bring the Hangman to justice before Chief O'Connor becomes the next victim?