Harry Bosch is the best detective in Los Angeles, but this time even he will have a hard time. After all, there is not one, but two mysterious cases at once! The city was shocked by the mysterious death of the son of a major politician - the body of a young man was found under the windows of a multi-storey hotel . At first glance, it seems like a suicide.... However, the father of the victim believes that his son was murdered .. Bosch is also investigating the long-standing murder of a woman - now it is possible to check the evidence on the DNA databases of criminals However, the results of the check are stunning - judging by the results of the analysis, the maniac was ... a man who was then eight years old! A mistake? Or someone's attempt to divert the investigation from the real killer? Bosch is pressured, demanding immediate results. He is convinced that the origins of both crimes should be sought in the past of the City of Angels.