Shu Ling (Tingting Xie) is a substitute teacher in a middle school, responsible for the Form 4E class full of rebellious students. Since taking over this class, some strange things have gradually begun to happen around Shu Ling, which makes Shu Ling feel very uneasy. She asked the director of the Academic Affairs Office for help, but the director told Shu Ling a shocking news-there is no Form 4E class in this school. Later, Shu Ling received a call from her mother and learned that she was with several students in the class at the moment. When Shu Ling arrived at the scene, all the students in front of her turned into ghosts for life. Baoer (Chrissie Chau), Xiaoqiang (Timmy Hung), Xueer (Zhuang Simin), Ameng (Fong Ho-Wen) and Xia Tou (Shimin Yeung) joined a tour group, but Baoer was unfortunately killed in a car accident on the way. Her boyfriend Jia Ming (Him Law), who had a fierce quarrel with Baoer, attended Baoer's funeral and was invited to dinner by the other four people. At the dinner table, everything Jia Ming showed seemed so weird and terrifying.