Bosch's first job calls him to the estate of ailing billionaire Whitney Vance, where he is tasked with finding Vance’s only potential heir. Along the way, Bosch finds himself clashing with powerful figures who have a vested interest in the heir not being found. Bosch finds an invaluable resource in Maurice “Mo” Bassi, a tech-forward gadget whiz who also shares Bosch’s fondness for smooth jazz and commitment to justice.

Bosch and Chandler work together to seek out a killer who just might find them first. As a result of being kidnapped by a masked assailant, Maddie Bosch's law enforcement career hangs in the balance. While they hunt for Maddie, the FBI scrutinizes Carl Rogers' murder and places Bosch and Chandler under suspicion.