Lu Dachuan is the head chef at Fumanlou, a long-established restaurant in Lanzhou. After eight years on the job, he earns 18,000 yuan a month, yet he handed his salary card to his wife, Su Wanting, on the very day they registered their marriage. Between the mortgage, living expenses for his in-laws, his younger brother-in-law's car loan, and his wife's spending money, their monthly expenses total 18,400 yuan, leaving him to cover the extra 400 yuan himself. He can rarely find even 100 yuan in his own pocket. On his birthday, he wants nothing more than a 30-yuan bowl of braised pork trotter rice, but Su Wanting refuses to transfer the money and mocks him for being so pathetic. Seven years of marriage collapse over a single bowl of pork trotter rice, and Lu Dachuan asks for a divorce. On the first day of the divorce cooling-off period, disaster strikes at the Song family's birthday banquet, catered by Fumanlou: more than thirty guests suffer vomiting and diarrhea and are rushed to the hospital.