Kind of a slow first half with a really unsettling, twisty, unsettling, sinister, unpredictable, unsettling second half. Did I mention how much this book unsettled me? 
 Seriously, a pretty good sociopathic thriller read, but there's a pretty big Extra Thing that no one warned me about while they were recommending it, so...lmk if you're maybe interested but want to know about the Big Unsettling Thing, I guess!