Lin Ye, who had just graduated and was worried about not being able to find a job, suddenly received an inheritance from the sky: a century-old ancestral home in the mountains, plus a staffed position as a civil administrator. On the first day he returned to the village, he became stupid. The walls of his ancestral home were covered with strange yellowing rules: "If you hear a knock on the door in the middle of the night, don't open it. Just pass a cigarette. That's the hanged ghost looking for a substitute. It will tell you who is going to die recently." "Don't touch the tributes in the kitchen. Wong Tai Sin will help you realize a wish if you eat them." As soon as he memorized the rules, people from the city's criminal investigation team came to the door: three strange murders had occurred recently, and each of the deceased had folk symbols that only Lin Ye could understand. Relying on the rules of the ancestral home, Lin Ye worked hard to solve strange cases, but found that all the cases pointed to a hidden cult society, and his grandfather's "accidental" death ten years ago was actually closely related to all of this.
