NYPD Detective Claire Codella has just won a tough battle with cancer. Now she has to regain her rightful place on the force. she hasn't even been back a day when Hector Sanchez, a maverick public school principal, is found murdered. The school is on high alert. The media is howling for answers. And Codella catches the high-profile case at the worst possible time. As she races to track down the killer, she uncovers dirty politics, questionable contracts, and dark secrets. Each discovery she makes brings her closer to the truth, but the truth may cost Codella her life.