The neon city lurks a serial murder plot, and an unsolved case file makes the time traveler Gu Ming's pupils shrink suddenly.
Bloody symbols reappear at the scene of the old crime, and the anti-reconnaissance camera is smiling at the corpse.
Partner Song Yi held the evidence bag tightly: "This time the murderer is provoking the entire criminal investigation system." When the AI face-changing (artificial intelligence face-changing) fraud case collided with the unmotivated poisoning case, two generations of criminal investigation thinking wiped out sparks in the fingerprint library.
Darknet betting is on - bets on them not being able to uncover the "Seventh Sin" behind the perfect crime.
In the rusty elevator shaft, the countdown begins to beat...