"Wisdom Teeth" is adapted from Remy's novel. It tells the story of Ren Kai, who graduated from school, and Zhan Ge, who just returned to work, who started working together because of a serial murder case. The case could not be solved but instead triggered a series of accidents. Zhan Ge met Wang Tao, a street child who killed his wife and children, and his hatred was out of control; Ren Kai lost his gun carelessly and was mistakenly taken by the murderer. The murderer lurks in the city, and the crisis is gradually approaching.