Xu Zhixia, five months pregnant, is asked by her husband at a birthday banquet to peel shrimp for her cousin. Her normally timid mother-in-law steps forward to defend her. Afterward, the two discover the girl is the father-in-law's illegitimate daughter, and the father and son have also misappropriated the maternity fund and plotted against the restaurant that rightfully belongs to Xu Zhixia. Teaming up to audit the accounts and recover the funds, the mother-in-law and daughter-in-law successively choose to divorce and go into business together running a shop. Facing the remorse and reconciliation pleas of the father and son, they firmly refuse, living a peaceful life of their own.