Detective Harry Bosch has retired from the LAPD, but his half-brother, defense attorney Mickey Haller, needs his help. A woman has been brutally murdered in her bed, and all evidence points to Haller's client, a former gang member turned family man. The murder rap seems ironclad, but Haller is sure it's a setup. Though it goes against all his instincts, Bosch reluctantly takes the case. Soon his investigation leads him inside the police department, where he realizes that the killer he's been tracking also has been tracking him.