I would probably go with 4.5 stars here - it was, overall, a really artfully written suspense novel. In that I felt the main character's paranoia. It basically felt like someone was going to jump out at you most of the time. Interesting themes about mental illness and blaming/not trusting the victim. After a slow start (it took me probably 75 pages to really feel like this book might be going somewhere), I was really loving it and couldn't put it down by the end.