When Renée Ballard’s police ID and badge are stolen while she’s out surfing, it’s just the start of a tsunami of complications that will affect her and her team at the LAPD’s Open-Unsolved Unit. As she tries to pursue answers to that particular problem  – with the help of Harry Bosch – and avoid departmental consequences, several other cases fight for attention. Advancements in familial DNA mean there’s a new lead in the case of an attacker known as the Pillowcase Killer, but the new genetic evidence seems to point to a high-ranking judge, so the way ahead seems treacherous. With the team mainly made up of volunteers, Renée jumps at the chance to.