Three months after discovering a startling new lead, Det. Harry Bosch is still pursuing the truth behind his mother's cold case. A murder of a high-profile attorney puts the city on edge so Chief Irvin Irving creates a Task Force with Bosch in charge. Bosch must contend with two former adversaries.

As the Task Force tries to clear the growing number of suspects, they discover a potentially explosive false alibi. Det. Santiago Robertson must put his personal relationships aside for the sake of the case. Edgar struggles rebalancing work and family. Bosch has an unlikely late night visitor.

The search for Sheehan intensifies, as pressure mounts to solve the Elias murder. The Task Force waits for ballistics to confirm their suspicions. Edgar and Bosch pursue an unofficial 'side project' in the San Gabriel Valley. Billets and Dets. Crate and Barrel respond to a suspicious hit and run in Hollywood.