Tense, psychological thriller that will make you think twice about playing any sexual games to please a significant other! King, as usual, really knows how to get inside his character's mind and subsequently, into yours. I've never rooted so hard for a character to simply be able to reach a glass of water. And how I keenly felt with her through her myriad stages of emotions and fear. The only disappointment I had with the book was the weird boogeyman in the corner, I thought he (it?) was extraneous and distracting.