I'll start with the cover, which I think is a good prelude to the book. Looks like a thriller that features a good old fashioned storyline with a few modern elements and adjusted for the digital age. Imagine something like - inevitably because of the creepy guy in the Hotel- Psycho combined with a bit of Sliver and Memento with some tech thrown in for good measure. I can imagine it working quite well as a movie as well.