Disguised in casual clothes, Zhou Jinyan visits a flagship fast-food restaurant owned by his company for an inspection. Simply because he asks for one extra packet of ketchup, the store manager, Su Man, demands a fee of ten yuan. Looking down on him as an ordinary customer, Su Man also publicly and harshly reprimands an employee, Lin Chu'an, for voluntarily getting the sauce for Zhou Jinyan. Zhou immediately launches an investigation and discovers that, for the sake of her personal performance record, Su Man has been withholding employee benefits for a long time and secretly introducing numerous unreasonable charges. After several rounds of testing and verification, Zhou finally sees the truth: the once simple and kind-hearted Su Man has long been consumed by fame and fortune, becoming a snobbish and vain person who will stop at nothing to secure a promotion. A sweeping campaign to clean up the store's corrupt practices is about to begin.