Dennis Nilsen was absolutely twisted. I wish this book would have spent some more time talking about his victims and a little less time talking about Nilsen‘s self pity and self promotion. Either way, this particular nut job has since died so there is that consolation. The book is also about the author, Russ Coffey, and his correspondence with Nilsen. It was interesting and a quick read, but it could have used some more editing in a few places.