Zhang Laosan, a compulsive gambler drowning in debt, accidentally saves the Yellow Weasel Immortal. Finding the slow, steady path to wealth too tedious, he insists on repeatedly trading his own fortune, kindness, and filial devotion for quick cash. Driven by greed, he gradually loses his humanity, and chaos engulfs his household. Meanwhile, his wife, Li Huihong, desperately tries to persuade him to change. When her mother-in-law needs medical treatment, she is forced to participate in transactions with the immortals, yet she steadfastly preserves her kind heart and refuses ill-gotten wealth. After enduring countless family crises, including her husband stealing her money, she finally breaks with the irredeemable Zhang Laosan. Through her skills and integrity, she earns the help of a benefactor and finds a stable, peaceful life, while the insatiably greedy Zhang Laosan meets a tragic end buried in debt.