Near Mulholland Drive, Dr Stanley Kent is found shot twice in the back of the head. It's the case LAPD detective Harry Bosch has been waiting for, his first since being recruited to the homicide special squad. When he discovers that Kent has access to dangerous radioactive substances, what begins as a routine investigation because something darker, more deadly, and more friendly urgent. Bosch as soon and conflict with not only his superiors but the fbi, which thinks the case is too important for just a cop. Complicated his job even more is the presence of agent Rachel wallen, his one-time lover. Now Guarding once slim advantage, Bosh relentlessly follows his own instincts, hope and they are still sharp enough to find the truth and a killer who can annihilate an entire city