Su Nian has been married for three years. Every month, she dutifully contributes 10,000 yuan toward the household expenses and even pays for a lavish birthday banquet for her mother-in-law. Instead of receiving gratitude, she is berated by her mother-in-law, who accuses her of never contributing a penny to the household and of living off her for all three years. Furious, Su Nian stops her monthly payments, and their once peaceful home immediately falls into chaos. Tensions between the two women continue to escalate until they begin questioning each other and comparing their accounts. To their surprise, they discover that both of them have been contributing household money throughout the past three years. The real culprit behind the entire conflict turns out to be Su Nian's husband, Zhou Zeheng.