Behind the bustling city, there are countless unknown evils. When darkness shrouds, criminal cases emerge like ghosts, challenging the bottom line of justice. From bizarre murders to mysterious disappearances, from cunning fraudsters to brutally violent crimes, the novel presents a variety of criminal cases. During the investigation, the criminal police not only have to face cunning criminals, but also deal with pressure and challenges from all sides. They groped in the darkness, not missing any clue, just to bring the criminals to justice and give justice to the victims.
