I was so thrown while reading this book. It starts with Alvie, absolutely terrible, blames all her problems on her 'perfect' twin. Then we meet Beth, and she's not so perfect, she's actually pretty horrible as well. That's how I felt with all the characters in this book, all pretty much terrible people, but what can you expect when you're  dealing with the mafia and hit men (or hit women). This book drug on for a while, so much detail in setting the scenes that the point was almost lost sometimes. 
I loved how the sections were named after the seven deadly sins, with a tweet from Alvinas Twitter.