General Shen Chengzheng brings home Wen Wan, a pregnant woman from Jiangnan. Mistaking the young and beautiful Madam Pei for the general's wife, Wen Wan uses her unborn child as leverage to fight for the main residence and claim the dowry, while allowing her maid to bully the elderly. Little does she know that Madam Pei is actually the general's own mother. Faced with her son's foolishness and Wen Wan's relentless demands, Madam Pei establishes household rules, examines the medicinal residue, and verifies the pregnancy timeline. Gradually, she uncovers a deception involving a life-saving act of kindness and a night of drunken indiscretion, ultimately discovering that someone else is the child's biological father. Once the conspiracy is exposed, Madam Pei makes proper arrangements for the innocent baby, while Shen Chengzheng takes responsibility for his mistakes and learns once again to respect his mother and the rules of the household.