Chen Qing is a clear-headed, independent professional woman. After marriage, she takes responsibility for all the family's expenses, only to fall into the trap of her mother-in-law, who has been scheming to gain control over the family's finances. Determined to turn the tables, Chen Qing voluntarily hands over her salary card and restructures her salary to expose her in-laws' stinginess head-on. Despite all her calculations, her mother-in-law's schemes ultimately collapse: her own machinations backfire when her younger brother takes 10,000 yuan from her, and her son squanders the family's money.