Zhao Lanying lives with her son's family, experiencing frequent inconveniences in her daily life. A fingerprint lock is installed on the family's bathroom, obstructing the elderly woman from using the restroom and putting her in a distressing predicament. Coinciding with the disbursement of the demolition compensation for the old family house, Zhao Lanying feels deeply aggrieved in her heart. Her son, Zhou Qiang, returns home and catches the situation, learning after multiple inquiries that his mother's long-term living conditions have been harsh. Seeing the full picture of the matter, Zhou Qiang is filled with guilt, determined to properly settle his mother and handle family conflicts rationally.