There is a "dead enemy" hidden in the Municipal Public Security Bureau - Chief Medical Examiner Duan Zhuo is cold to the core, but he can pick up memory fragments based on his wounds during the autopsy;
The new detective Sui Ge smiled brightly, and the lie detector pocket watch in his pocket never missed lies, but Duan Zhuo couldn't be read.
The serial suishi cases bound the two people, and the "Red Shadow Code" chip revealed the secrets from three years ago: Duan Zhuo is the top hacker "Fen Ying" and a survivor of the experiment; Sui Ge is an agent of the criminal group "You Butterfly Society", who was ordered to kill Duan Zhuo but deliberately let go.
Crisis ensues. While solving the murder, they are torn between trust and temptation. It wasn't until the code tattoo on Duan Zhuo's left wrist resonated that he understood: From the moment Sui Ge stepped into the code vortex for him, this collaboration had already become a bond that lasts until death.
The final showdown is imminent, the conspiracy of the transnational criminal group has surfaced, and the double-A bosses have joined forces to break the situation...
