I was unable to put this down. From the first pages the pace is fast, and the body count mounts. Agent Patrese is called in to solve the crimes. One killer or two? There are some distinct similarities between some of the killings, but others seem quite different, although clearly linked in some way. The theories are tested, refined, and often thrown out. I have not read anything by Daniel Blake before, but I shall definitely look out for his books in the future. An excellent read.