Detective Jane Rizzoli (Angie Harmon) and medical examiner Maura Isles (Sasha Alexander) investigate the grisly murder of a wealthy couple. The M.O. matches the work of a serial killer known as the Surgeon, who once nearly murdered Jane. Now that the Surgeon is behind bars, it seems one of his proteges is picking up where he left off. Billy Burke (The Twilight Saga) guest stars.