When her mother-in-law, Zhao Guifen, needs long-term physical therapy for a knee injury, Liu Zhiguo constantly uses the excuse that his mother has had a hard life to guilt-trip his wife, Chen Hui, into taking care of her and doing all the housework. He shirks every responsibility himself and even joins forces with relatives to pressure Chen Hui. Chen Hui brings out the household accounts she has kept for three years, meticulously checking every hour spent on caregiving and every expense, exposing the empty pretense of filial devotion. After a hospitalization crisis, disputes over sharing surgery costs, and arguments about property, the family finally puts a caregiving schedule and expense-sharing agreement in writing, making invisible domestic labor visible and ensuring everyone takes responsibility.