Definitely a unique and interesting read. Barry Lyga does a great job getting into the mind of a killer and provides an interesting look at how that environment may shape a child. 
 I've heard a lot of people compare this book to Dexter and as someone who has tried multiple times to get into Dexter (there's just something about it - I find it more annoying than interesting), I have to say I think this book is a million times better. It's creepy, it's easy to read, it feels authentic and it will keep you on the edge of your seat. 
 If you like mystery/crime fiction or are just looking for a really well written, interesting read, definitely check this one out.