Voir Sadisflix. The film tells the story of narcotics police officer Huang Mingjin and the "mysterious figure" Wei Yunzhou. Through completely different means and methods, in the process of calculating and wrestling with each other, they tear apart the facade of urban tranquility, exposing the underground drug network woven by the hidden hand "Long Wang", and ultimately eradicate the darkness with the sword of justice, revealing the dawn of light.