On March 15, 2017, a bloody fingerprint dragged the city's criminal investigation team into a hunting game deep in the dark web.
Encrypted death notices are hidden in abandoned cases. The only clue left by the disappeared victim is the ID that flashes across the dark web forum. Detective Lu Chen led his team members to chase the murderer among the codes and bloodstains. When they followed the clues of fingerprints and old documents to get closer to the truth, they discovered that this invisible web had already entangled the special case team into prey waiting to be slaughtered.
