This is an impossible book for me to rate and review. It's well written, impeccably edited (only found one lonely little typo), and the suspense is thick. Sounds great, right? 
 Apart from all of the good stuff, I had a hard time reading this book. The main character, Rachel, is an alcoholic. She's depressed, and the writing was good enough that I was all too easily put into her shoes. I found that I could only read small bits at a time, or I would find myself feeling down. It left an almost grimy feel over my skin. 
 I found it was much easier to read the last few chapters. It was intense, even though I had figured out who the killer was. Or maybe because I knew who the killer was. Watching Rachel finally put the pieces together was enthralling. 
 The suspense is what kept me going. Because Rachel is an alcoholic, she blacked out the whole time around the murder. The reader is only given brief glimpses of what happened as the clues are dropped, and it was a fun game of whodunnit. Even Rachel herself was a possible suspect, and I loved that she kept digging into the crime even though it put herself at risk. Maybe one of her only redeemable qualities... until the end of the book, I genuinely felt pity for her. I wanted to shake her so badly and tell her to forget her ex-husband and move on with her life. Easier said than done, I know all too well. 
 Great book club read!