Detective Renée Ballard returns to Hollywood Station to find an older man rifling through old file cabinets. It's none other than Harry Bosch, working a cold case that's gotten under his skin. He's investigating the death of 15-year-old Daisy Clayton, a runaway who was brutally murdered. Ballard joins forces with Bosch to find out what happened to Daisy and finally bring her killer to justice... Ballard and Bosch team up once again.