Chen Guixiang has run her lamb paomo restaurant for twenty years. A dispute over customers getting free soup refills erupts, offending longtime regular Lin Xiaoman and her companions. To recover her losses, Chen reuses ingredients that have been left overnight and reheated. The spoiled food makes customers sick, resulting in the restaurant being ordered to close and fined. Watching her competitor, Li Ji, enjoy booming business, Chen becomes malicious and secretly puts harmful additives into its kitchen. Fortunately, surveillance footage captures the truth. In the end, Chen comes to her senses, lets go of her obsession, and starts working honestly at Li Ji's restaurant. Through hard work, she makes amends for her wrongdoing and rediscovers the moral principles that should guide a business.