On her husband Zhao Zhenguo's sixtieth birthday, 55-year-old housewife Wang Lan faces her husband bringing his mistress to the house to force a divorce. Faced with her husband's humiliation and her biased son's accusations, Wang Lan does not cry or make a fuss, directly pulling out the property ownership certificate bearing her own name to sell the house on the spot, and producing an account book kept for twenty years to disgrace her unfilial son. Wang Lan moves into a luxury villa with her daughter, while Zhao Zhenguo, left with nothing after losing both money and property, is abandoned by his mistress and filled with lifelong regret.