When a cop's suspicious death is ruled a suicide, Detective Harry Bosch has a hard time believing the company line. This wasn't just any cop, but a missing LAPD narcotics officer who was rumored to have crossed over to the other side-peddling a new drug called Black Ice. Now Harry's making some dangerous connections, leading from the cop to a string of bloody murders, and from Hollywood Boulevard's drug bazaar to Mexico's dusty back alleys. In this lethal game, Harry is likely to be the next victim.