I read the ARC of this after reading several intriguing reviews. It was incredibly hard to put down, advancing a mystery (why has Jill awoken in a hospital room with no memory of her trip to Italy and her best friend Simone's death?) with police reports, blog and Facebook posts, emails, and other ephemera. The reader knows more than Jill as she struggles with retrograde amnesia, but only in small peeks. Was Jill's relationship with Simone as great as she always thought? 
 "Who we are is what comes out when sh*t goes bad. You can't tell anything about a person when things are great. If you want to really know someone, be there when everything goes to hell."