Murder and morality?

Content:
Sonny is in prison. He is a kind of priest for the other prisoners. With his life in prison, he is satisfied that his heroin addiction is befriedeigt. Until one day a fellow prisoner told that the suicide of his father was not suicide. Sonny breaks out of prison and wants revenge.
Review:
I have read no Nesbo book so far, so I can not compare.
The book begins quite slowly, it takes until the voltage comes and win things momentum. Linguistically, the English translation is unusual at first, but you get (especially if you often read English) is progressing well.
The book does not have a standard character, above all, I think for me to get used to that (the plans his murders and brutal perform) with a killer can identify. The question whether a murderer can be a good Mesch and whether you can love him, is here clearly in the foreground.
I think it's good that there is no clear good and evil are in this book at the main protagonists (whether in the police, or the murderer). It is thus especially interesting is that it brings our morals falter.
The book is good, even if not a clear recommendation.