Longtime defense attorney Mickey Haller is recruited to change stripes and prosecute the high-profile retrial of a brutal child murder. After 24 years in prison, convicted killer Jason Jessup has been exonerated by new DNA evidence. Haller is convinced Jessup is guilty, and he takes the case on the condition that he gets to choose his investigator, LAPD Detective Harry Bosch.

Haller is a Lincoln Lawyer, a criminal defense pro who operates out of the backseat of his Lincoln Town Car, to defend clients at the bottom of the legal food chain. It's no wonder that he is despised by cops, prosecutors, and even some of his own clients. But an investigator is murdered for getting too close to the truth and Haller quickly discovers that his search for innocence has taken him face to face with a kind of evil as pure as a flame.

Renée Ballard works the night shift in Hollywood, beginning many investigations but finishing none, as each morning she turns her cases over to day shift detectives. A once up-and-coming detective, she's been given this beat as punishment after filing a sexual harassment complaint against a supervisor. But one night she catches two cases she doesn't want to part with: the brutal beating of a prostitute left for dead in a parking lot and the killing of a young woman in a nightclub shooting. Ballard is determined not to give up at dawn.

In L.A., Cassie Black is another beautiful woman in a Porsche: except Cassie just did six years in prison and still has "outlaw juice" flowing in her veins. Now Cassie is returning to her old profession, taking down a money man in Vegas. But the perfect heist goes very wrong, and suddenly Cassie is on the run - with a near-psychotic Vegas "fixer" killing everyone who knew about the job.

Detective Harry Bosch has retired from the LAPD, but his half-brother, defense attorney Mickey Haller, needs his help. The murder rap against his client seems ironclad, but Mickey is sure it's a setup. Though it goes against all his instincts, Bosch takes the case. With the secret help of his former LAPD partner Lucia Soto, he turns the investigation inside the police department. But as Bosch gets closer to discovering the truth, he makes himself a target.