This detective has an exceptionally high crime detection rate. He earned the loyalty of his friends and the respect of his colleagues. No one who was in action with John Luther has a bad word to say about him. Why is he all on edge and can barely cope with bouts of rage? From the outside, it seems that this man is on the verge of madness - especially since he again and again oversteps the boundaries of what is permitted. Even now he does not think about his career and legality, does not try to maintain good relations with colleagues and even save his own marriage. Both blind rage and cold calculation - everything is subordinated to one single goal: to get to the killer as quickly as possible and stop him at any cost. The hero of the popular BBC television series begins a new investigation - and at the same time opens a series of novels in the hard-boiled detective genre!