在将杀害他母亲的凶手绳之以法15个月后,博斯发现自己在两个方面寻求真相。一个旧案件的新证据让每个人都怀疑博世是否编造了证据来定罪那个错误的人。好莱坞一家药店的谋杀案暴露了一家复杂的毒品药厂,让博斯沿着一条黑暗而危险的道路追捕凶手。Fifteen months after solving the cold case murder of his mother, Marjorie Lowe, and suffering the loss of his ex-wife, Eleanor, things look grim for Detective Harry Bosch. Strung-out and dirty, we find Bosch stepping off a small plane in the middle of nowhere and transported along with a dozen other haggard-looking lost souls to a remote camp in the desert. Has the dark side conquered Harry Bosch? At night, Harry starts snooping around the camp. Maybe he's not a junkie after all. But Bosch is discovered by the camp's crew, a gun pressed to his head, and just as the trigger's pulled ... We jump back a few weeks to where this all began: Pharmacist Jose Esquivel Sr. and his son, Jose Jr. argue in their small struggling store, while dangerous men lurk outside. Jose Jr. storms out. The men enter demanding oxycodone, and, failing to get it, shoot Esquivel Sr. dead. The murderers flee. As all of Hollywood Station scrambles to the crime scene, Crate and Barrel get T-boned by a patrol car. ...