Harry Bosch works cold cases, helping out the under-funded San Fernando police department. When a double murder at a local pharmacy is called in, Bosch is the most seasoned detective on the scene. But with experience, come the ghosts of long-forgotten crimes.
Back when Harry Bosch was just a rookie homicide detective, he had an inspiring mentor who taught him to take the work personally and light the fire of relentlessness for every case. Now that mentor, J.J. Thompson, is dead, but after his funeral his widow hands Bosch a murder book that Thompson took with him when he left the LAPD 20 years before - the unsolved killing of a troubled young man in an