** spoiler alert ** 
 I was not wrong about any of the things I guessed at 70%, so there's that. 
 I waited too many days to write this so now I don't have much to say because I texted/emailed it all, but idk, I liked this pretty well? It was really compelling up to the point I figured out literally every part of the mystery! Which is the tough thing about books like this for me--I want there to be clues that lead to a logical conclusion, but if there are too many I get annoyed at guessing the conclusion, and if the conclusion comes out of nowhere I'm annoyed at that too, so how can a mystery/thriller win?? This one didn't win with me in that way. 
 There's also that everyone in this book is mean and sad and bored and cheating and alcoholic, and that's just...not terribly interesting imo, and also that's the cast of every BBC mystery miniseries, which is fine, but kind of--look, all right, we all know what I'm trying to say is that none of these people are the Dunnes 
 That said, Anna was constantly a surprise! It was a surprise that she got to narrate at all, and then her choices were the only ones that I always wondered about and felt like I couldn't predict. Anna at the ending with Tom! Pretty tense. Pretty cool. I also found Megan really compelling and generally surprising. But a lot of red herrings in her narration or something, like...intentional hiding of her affair with Tom in the narrative, is that unreliable narration or just a lie? A lie is not a twist! 
 Bummer about Rachel's life. Fuck Scott and Tom though. Oh also I was sure the redheaded guy who kept ~smiling at Rachel on the train was an undercover cop. 
 I don't know!! I enjoyed reading this but it was a slow beginning and a mostly expected ending and I feel personally insulted by everyone who ever said this was the new Gone Girl MUCH LESS BETTER than Gone Girl, what is the matter with you people, why do you not love yourselves 
 Oh also what happened with Kamal??? He dropped out of the story totally??? I hope he's okay?? 
 Sorry about this review, Marlena, thank you for reading it