Stalkers give me the creeps.....so this must be a good book!!

Well, I'm not sure what Claire has got herself into, but I want to know! With her best friend, Gavin, recently passed in an "accident" and now some guy is stalking her, and he's not really being very sneaky! The whole idea of a stalker in your house and following you really creeps me out, but makes me want to read the book!! It sounds so suspenseful!