Ren�ee Ballard catches two cases she doesn't want to part with: the brutal beating of a prostitute and the killing of a young woman in a nightclub shooting. Against orders and her own partner's wishes, Ballard works both cases by day while maintaining her shift by night.

Detective Renee Ballard is working the graveyard shift again, and returns to Hollywood Station in the early hours only to find that an older man has snuck in and is rifling through old file cabinets.The intruder is none other than legendary LAPD detective Harry Bosch, working a cold case that has gotten under his skin. Ballard kicks him out, but eventually Bosch persuades her to help and she relents. Bosch is investigating the death of fifteen-year-old...