J have read this book in August, thinking to have a new, more intimate look of Mr. Bourgoin. Unfortunately it only has a story, a series of occurrences without true personal analysis. I would have much more enjoyed a more detailed development of his felt face these criminals, flew too in my opinion. I really expected a more intimate writing sending us his gaze meet these killers. In conclusion even if Stéphane Bourgoin remains the undisputed French specialist of serial killers, prefer reading "killer" and "Black Book of serial killer" which are references and these best books.