Is it the end of the road for Harry Bosch? When evidence links a brutal murder in 1989 to a convicted rapist named Clayton Pell, the case seems airtight. Pell's DNA was found on the victim – but he was only eight years old at the time. This isn't the only mystery Harry Bosch has to solve. A man has fallen – or was pushed – from a window. The victim's father is Councilman Irving, who has been trying to destroy Harry's career for years. Now Irving wants Harry to take up the investigation. Harry uncovers the traces of two of the city's deepest secrets: a killer who has operated for as long as thirty years without detection, and a conspiracy that stretches into the police department's dark past . . .