Chen Wei and her cousin Xiaodong jointly open a fresh-food supermarket called Hao Ling Xian. However, after the grand opening, they are repeatedly harassed and deliberately targeted by the Lin family. The Lin family's elderly woman throws tantrums and extorts money, the elderly man steals merchandise, and their daughter-in-law, Li Caier, exploits her pregnancy to secretly switch price tags. Behind it all, Lin Yao holds a grudge after failing to rent the store and plots to drive the supermarket out of business. Faced with one provocation after another, Chen Wei remains patient and keeps her composure, secretly recording losses, upgrading surveillance cameras, and preserving evidence while waiting for the greedy Lin family to make an even bigger mistake. Eventually, surveillance cameras capture all three members of the Lin family working together to commit a crime, with the accumulated amount involved exceeding 30,000 yuan. Chen Wei immediately calls the police and brings their scheme to an end. Lin Yao later breaks into the supermarket at night to take revenge, but is caught red-handed as well.