The story is loosely based on the Jack the Ripper crimes that haunted Whitechapel in London towards the end of the 19th century. Apparently this is the first of an intended series of books featuring the two main characters. While I enjoy Victorian Police Procedural fiction, I do like to have some excitement in the storyline which I found lacking in this novel. I also found the actual story to be slow and overly descriptive and not to my liking.