Zhou Guilan has lived at her daughter's home for six years, doing the housework and constantly contributing money while enduring countless unspoken grievances. After unexpectedly winning five million yuan in the lottery, she keeps the news to herself, quietly finds a place to live, decisively leaves her daughter's home, and opens a shop to support herself. Her son-in-law, Gao Zhiyuan, recklessly ventures into business and runs up debts. He tries to use family ties to pressure Zhou Guilan into paying them off, only to be thoroughly humiliated in return. Her daughter, Chen Xiaoyan, finally comes to her senses, decisively divorces him, works hard to earn money, and starts a new life with her mother and child.