In the urban jungle filled with poisonous fog, he is a lone traveler walking on the edge of a knife.
Three years ago, the file of police academy elite Lin Shen was completely erased and replaced by drug addict "Lynx" who infiltrated the most rampant drug trafficking group on the southeast coast. In the dark abyss, he witnessed his comrades being executed in front of him, and he could only swallow blood and tears and continue talking and laughing; he was forced to use drugs to prove his innocence, and he walked on the tightrope between reason and sinking every step of the way.
When the small drug dealer who trusted him was pushed off the roof, and when the collected evidence disappeared, Lin Shen realized that there was a "ghost" hidden within the police force. In the confusion of black and white, he is both a pawn of the police and a sharp weapon of the drug lord. At the final moment of closing the net, he aimed his gun at the most unexpected person——
"You can play the devil, but you have to know who you're holding the gun for."
