The noise from square dancing sparks a fierce conflict between Zhou Man and her neighbors. She uses the law and "underworld tactics" to counter the retaliation from Wang Hu, Wang Cuihua, and others, and gets to know Jiang Che, a profiler and psychotherapist. With Jiang Che's help, Zhou Man's mental state improves, and the two join forces to uncover a conspiracy by Zhao Hongsheng and Wang Hu, who created rumors and poisoned people to buy the residential complex at a low price. Zhou Man switches to corporate elite mode, organizes the neighbors to fight back, and uses capital loopholes to drive Zhao Hongsheng into bankruptcy. In the end, Wang Hu and his accomplices are arrested, and the neighborhood is transformed into a civilized community. Zhou Man turns down job offers from top-tier firms, accepts Jiang Che's confession, starts living for herself, and finally gets a good night's sleep.
