This was an entertaining read with a great setting and a solid mystery. It gave me strong Hitchcockian vibes and also felt very in the ilk of King's early work, all the way down to the fact it's set in Maine (which if you're aware of his work, you'll understand the significance). This book however goes bonkers in its third act. I've never seen so many twists and reveals in such quick succession, so much so that in the furore of it all the author trips over himself and misattributes a fact not once but twice onto the wrong character. As much as I enjoyed this Sager in the end threw too much at the wall and some of the reveals felt like he was swerving us just for the sake of a swerve.