Hit Girls — Dreda Say Mitchell

Two 10-year-old twin sisters are murdered outside their school -- but they aren't just any kids, they are the daughters of gangster Stanley Lewis. When a rival gangster is arrested, Stanley vows to take revenge; but his dad, feared villain Kenny Lewis, thinks there's more going on. Kenny contacts the one group of people who he trusts to help him find the truth: Jackie, Anna, Roxy, and Ollie are four women with shady pasts who take the cases people don't take to the cops. They enter a world of easy sex and even easier violence where everyone, including the Lewis family, is hiding secrets.