Megan Abbott & Alison Gaylin 
Normandy Gold collection 

When her younger sister is found at the center of a brutal murder investigation, tough-as-nails Sheriff Normandy Gold is forced to dive headfirst into the seedy world of 1970s prostitution and soon discovers a twisted conspiracy leading right to the White House.Sex, violence and corruption collide in this gritty vigilante thriller from best-selling crime authors Megan Abbott and Alison Gaylin.Collects Normandy Gold #1-5.