Frustrated with the hypocrisy and bureaucracy of the LAPD, Harry Bosch has resigned and is forced to find a new source of income and a new way of life. But the life of a retiree doesn't suit him. He has devoted himself to law enforcement out of a deep drive to see justice done equally for all. On his own, he is still drawn towards the abyss. And when he rediscovers a startling, unsolved murder among the old case files he's been poring over, he knows he can't rest until he finds the killer, with or without a badge.