Synopsis：This film is a prequel to the movie "Fight Against Evil," created by the original team. The story revolves around a Northeastern police officer named Li Hongqi (played by Xie Miao), who is fiercely dedicated to eradicating evil. During a blind date, he accidentally discovers the existence of a local illegal pornography industry. As he delves deeper into the investigation, a massive pornographic "empire" that controls drugs and exploits women emerges. Not only does his life come under threat, but he also finds that his closest friend is involved... Confronted with numerous innocent women as victims and a group of despicable criminals, Li Hongqi decides to fight to the end and is determined to eradicate this "yellow cancer."