just finished 'the man from primrose lane' a first novel by a true crime writer who merges factual narrative with fiction and then midway through takes you into a completely different genre that i can't talk about without spoiling the story. this is a great first novel but it's hard going once you get to the twist midway through. 
it begins as a love story, then segues into a mystery with a protagonist who sounds a lot like the author around the murder of the man from primrose lane. 
the novel is well constructed, it's very adult and somewhat violent and graphic, there's scenes in there that are quite disturbing but it's a good read and worthwhile. it does need a sequel to explain the mystery surrounding the cat, but i think that's another genre.
i noticed a number of people on amazon reviewing the book did not get what the cat was, i got it straight away but it's not really well explained, just like the movie prometheus its given away in a random line.
the philosophical idea works well and if you want a page turner that will also surprise you this is the one. but just like prometheus if your not in the right frame of mind it can disappoint.