The story of Sleepwalker by Keith Latch develops around a series of particularly brutal murders, committed in the city of Memphis. The plot is not easily predictable, which makes the book rather interesting. The reader really wants to find out what happened next. The whole story generally makes sense, which cannot be said about some of the novels of this genre.
Sleepwalker contains scenes of graphic violence, which I found extreme even for a horror. In particular there is a scene in which the authors describes, in medical terms and with great detail, mutilation of a young woman by a sadistic killer. This and other scenes go way beyond what was justified by the plot and almost made me stop listening to this book.
All in all it's an adequate piece of writing, but I personally didn't enjoy it. However, if you are a fan of the genre and are not disturbed by extreme violence, this book may suit your taste.