I'd give this book five stars for premise, and three for execution, so I'm happy to rate it an overall four. I read it from start to finish in one sitting, and there was some very effective creepiness going on - so much so that I actually screamed and jumped when my husband looked over my shoulder while collecting his thoughts, and I was convinced that someone was sneaking up behind me. 
 The creepiness didn't last, though ... the second half of the book was more "horror" than "creepy", and even that kind of petered out by the end. Ultimately, my biggest complaint about the book is that it doesn't seem to know if it's supposed to be horror or black humor. It has plenty of both, but doesn't really seal the deal in either. 
 Still, I'd recommend it to anyone looking for something different, something a little creepy, or just a fairly quick and engaging read.