Status Updates From The Perfect Stranger

Rereading(listening to) it almost 6 years later because I needed to take a break and can't focus much lately. And it's comforting to come back , I remember loving it before. And thinking that Emmy never existed and it was a fight club kind of scenario lol. I know it's not the case now but still can't remember the ending / plot twist besides the hot cop being a bad guy?so I'm excited to refresh my memory.