Late at night, takeaway rider Chen Mo bumped into a man in black while delivering food. After the man left with a curse, Chen Mo found the body of a recently murdered girl deep in the alley. After calling the police in fear, the girl's resentment haunted him - her name was Lin Xiaowan, and the last memory she had before her death was the face of the man in black. From then on, Chen Mo was followed by female ghosts every night, and strange phenomena occurred frequently in his home, which even began to endanger his family. In desperation, he found Zhou Banxian, the mysterious owner of a paper-making shop in the west of the city, and was told that he had been marked by a resentful spirit. If he did not help her get rid of her obsession, she would be attacked within seven days. And the man in black is actually the small leader of the "Underworld Society", an evil organization that specializes in collecting souls of dead people in recent years. In order to protect himself, Chen Mo was forced to cooperate with the female ghost, delivering food to make ends meet while tracking down clues about the Abyssal Society. In the process, he met Su Qing, a policewoman who specializes in supernatural cases, and gradually discovered that the Ming Yuan Society was refining a "shadow puppet" that could control living people, and Lin Xiaowan's murder was no accident - she was born with a Yin destiny, which is an excellent material for refining a Yin puppet. As the investigation deepened, Chen Mo learned rudimentary Taoism from Zhou Banxian. From the initial fear of escaping, to taking the initiative to protect the people around him, he finally sneaked into the Abyss Society stronghold, confronted the men in black, rescued the imprisoned souls, and allowed Lin Xiaowan to rest in peace. After the dust settled, Chen Mo became a disciple of Zhou Banxian and became a "takeaway Taoist priest" who walked at night. He continued to shuttle through the dark places of the city to deal with supernatural events that the sunlight could not reach.