I'm sad to say I was quite disappointed when I finished this book. 
 To be fair, my disappointment really wasn't the book's fault. The only reason I picked it up in the first place was because it had such high reviews, continually praising its clever, unreliable narration and unpredictable ending. I've been wanting to read a book with an unreliable narrator for some time, and I decided to try this one out since I had heard such good things about it. 
 I started this book out (incorrectly) assuming that unreliable narrators purposely withhold important information from the reader, either to keep the reader on their side, or to maintain the reader's interest in the story. I assumed (again, incorrectly) that when I would reach the end of the story, everything I knew would be dismissed as a lie, and then some kind of shocking revelation would change my entire perspective on what I've been reading. 
 I learned pretty quickly on throughout the book that the narrator wasn't "unreliable" per se, but more so just morbidly alcoholic, to the point where she was continuously drunk during the majority of the important scenes in the book, and as a result, couldn't remember the details correctly. She wasn't cleverly keeping information from the reader or twisting the truth to suit her favor; instead, she was so recklessly drunk throughout the majority of the book that she really couldn't discern between what was true and what wasn't. 
 As I neared the end of this book, I kept waiting and waiting for the big reveal. I already had my suspicions about who the real killer was, especially since the main character kept hinting at it, but I assumed the truth was warped because the protagonist was not supposed to be trusted. When the "unexpected twist" happened, I wasn't blown away or shocked by the identity of the killer. On the contrary, I blew through it quickly, expecting the narrator to reveal a bigger twist she had been purposely hiding all along, but unfortunately, that never happened. I ended the book feeling disappointed and somewhat cheated of the fact that it didn't seem to deliver that unreliable narration it had promised. 
 I will add that the author dives into some deep and unfortunately common issues in this book, including alcoholism, divorce, infertility, abuse, and losing a child. I thought the way she presented these issues through the narrators' lives was really touching and profound. This book provided me with some insight about these issues that women have to face, and I thought the way the author dealt with them was really well done. 
 Even though this review has been mostly negative, I will mention that the book kept me hooked from the beginning. It was extremely easy to get into, and I loved the edgy, urban London feel that it gave. Though I felt frustrated by the main character's folly as she continually gave into her battle with alcoholism, the book was fast-paced and highly entertaining. The storyline was interesting and engrossing, and the build up to the end was wonderfully paced as well. It just didn't have that explosive ending I was expecting. 
 Overall, I was disappointed with this book, but it did not fail to keep me entertained and engaged until the very end.