Six months ago Harry Bosch left the LAPD before they could fire him and then hired maverick defense attorney Mickey Haller to sue the department for forcing him out. Although it wasn't the way he wanted to go, Harry has to admit that being out of the game has its benefits. Until Mickey asks him to help on one of his cases, and suddenly Harry is back where he belongs, right in the centre of a particularly puzzling murder mystery.

In the LAPD's Open-Unsolved Unit, not many murder victims die almost a decade after the crime. So when a man succumbs to complications from being shot by a stray bullet nine years earlier, Bosch catches a case in which the body is still fresh, but any other evidence is virtually nonexistent. Now Bosch and his new partner, rookie Detective Lucia Soto, are tasked with solving what turns out to be a highly charged, politically sensitive case.

When a physicist is murdered in LA it seems the killer has no fear of publicity, leaving the body on The Mulholland overlook, a site with a stunning view over the city. And when it's discovered that the victim turned over a quantity of a lethal chemical to his killer before he died, Harry knows he has more than just a single death to worry about. Alongside the forces of Homeland Security, Harry realises he must solve the murder or face unimaginable consequences.

May 1992, and after four LAPD officers were acquitted after the savage beating of Rodney King, Los Angeles is ablaze. As looting and burning take over the city, law and order are swept away in a tidal wave of violence. But under threat of their lives, homicide detectives like Harry Bosch are still stubbornly trying to do their job. With no effective police presence on the streets, murder just got a whole lot easier - and investigating them got a whole lot harder.

Harry Bosch is facing the end of the line. He's been put on the DROP - Deferred Retirement Option Plan - and given three years before his retirement is enforced. Seeing the end of the mission coming, he's anxious for cases. He doesn't have to wait long. First a cold case gets a DNA hit for a rape and murder which points the finger at a 29-year-old convicted rapist who was only eight at the time of the murder.

At the end of a long, dark night Detectives Renée Ballard and Harry Bosch cross paths for the very first time. Detective Renée 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.

Mickey Haller gets the text, "Call me ASAP - 187," and the California penal code for murder immediately gets his attention. Murder cases have the highest stakes and the biggest paydays, and they always mean Haller has to be at the top of his game. When Mickey learns that the victim was his own former client, a prostitute he thought he had rescued and put on the straight and narrow path, he knows he is on the hook for this one. He soon finds out that she was back in LA and back in the life. Far from saving her, Mickey may have been the one who put her in danger.

An old case from his LAPD past threatens Bosch's reputation in a gripping new thriller. Harry Bosch is back as a volunteer working cold cases for the San Fernando police and is called out to a local drug store where a young pharmacist has been murdered. Bosch and the town's three-person detective squad sift through the clues, which lead into the dangerous big-business world of prescription drug abuse. Meanwhile, an old case from Bosch's LAPD days comes back to haunt him.

The shooting of a Chinese liquor store owner in LA brings Harry Bosch back to the Rodney King riots and the moment a stranger gave a young cop sanctuary. Now the debt must be repaid, and Harry soon discovers the old man's death was no ordinary holdup.

It starts with the body of a Hollywood producer in the trunk of a Rolls-Royce, shot twice in the head at close range - what looks like "trunk music", a Mafia hit. But the LAPD's organized crime unit is curiously uninterested, and when Harry follows a trail of gambling debts to Las Vegas, the case suddenly becomes more complex - and much more personal.

When he left the LAPD, Bosch took a file with him: the case of a production assistant murdered four years earlier during a film-set robbery. The LAPD thinks the stolen money was used to finance a terrorist training camp. Thoughts of the original murder victim were lost in the federal zeal, and when Bosch decides to reinvestigate, he quickly falls foul of both his old colleagues and the FBI. When the investigation enables him to meet up with an old friend, shadows from his past come back to haunt him.

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.

Harry is back, assigned to the LAPD's Open-Unsolved Unit with his former cop ally and partner, Kizmin Rider. These detectives are the Closers. They are thrown into a politically sensitive and dangerous case when a white supremacist is connected to the 1988 murder of a mixed-race girl. The police department has changed, but one thing hasn't--Harry's nemesis, Irving. The former deputy chief has been pushed from power and given a virtually meaningless new role. Full of vengeance, Irving calls Harry a "retread".

Harry attacked his commanding officer and is suspended indefinitely, pending a psychiatric evaluation. At first he resists the LAPD shrink, but finally recognizes that something is troubling him and has for a long time. In 1961, when Harry was 12, his mother, a prostitute, was brutally murdered with no one ever accused of the crime.

When the bones of a boy are found scattered in the Hollywood Hills, Harry Bosch is drawn into a case that brings up dark memories from his past. Unearthing hidden stories, he finds the child's identity and reconstructs his fractured life, determined that he won't be forgotten. At the same time, a new love affair with a female cop begins to blossom - until a stunningly blown mission leaves him in more trouble than ever before.