Initial Impressions 7/6/17 and posted on The Book Addict's Guide 9/28/17: A little more than four stars but still not quite five 
 WOW this book was really interesting! First, I love that it was short. It added to the pacing that it was a book you knew you could race through and especially once things got towards the middle, I couldn't put it down. 
 I also have to hand it to Iain Reid for how this book was structured. Obviously it's a thriller that has been advertised as having a shocking ending so I'm not giving anything away there, but it was something that certainly surprised me and I immediately went back to the beginning of the book to check out how everything had started again because I needed to retrace my steps! The structure was excellent and it was so interesting to read! The ending was definitely shocking and I totally didn't see it coming, somehow. A lot of times, I'm able to pick up on "obvious" things and piece together the end of a mystery or thriller but this one really got me. Looking back, I should have known but I guess that was the true nature of the book. 
 I was still confused about a few things after immediately finishing but once I started to look back on the whole book, it just became more and more clear to me. There were lots of clues tucked all over the place but you'd never know they were there if you didn't know to look for them, but then seeing them again just made everything click. It was very creepy at times, definitely thrilling, and quite an interesting read! 
 Update after browsing everyone else's reviews: Putting this in spoiler tags beause of what I'm relating it to, which can give away the ending... (view spoiler)[HOW DID I NOT REALIZE THE GIRLFRIEND HAD NO NAME? The person who narrates the whole book didn't have a name. How very Fight Club. Now I'm just like... mind. blown. BRAVO, IAIN. BRAVO. I totally didn't even notice. (hide spoiler)]