Shen Yan, a criminal psychology simulation expert, lost his partner due to a fatal misjudgment of the system during a mission. Two years later, as a down-and-out private investigator, he followed a seemingly ordinary disappearance case, but found that all the clues pointed to the underlying logic of the same system back then. A "puzzle of crime and punishment" from the dark web is exploiting the loopholes in the system to accurately target his every move as new evidence of crime.
