Shen Nanxing, a 30-year-old audit manager earning 800,000 a year, is targeted by new cleaner Wang Xiufang, who pushes her layabout brother as a match. After being rejected, Wang spreads workplace rumors accusing Shen of elitism and abusing staff. Instead of backing down, Shen uses her professional skills to uncover evidence that Wang embezzled 170,000 in cleaning supplies and fabricated a fake niece and fake emergencies. Wang is fired and handed to the police. Shen fully clears her reputation.