Li Hai (Wang Zhifei) and Wu Ting (Jiang Shan) have been married for many years. They have raised their cute daughter Yingzi (He Hongshan) together. They are very good in each other, and their family life is happy and beautiful. Yingzi grew up. In order to receive better education, the couple decided to send Yingzi to Canada for further studies. The two -university couple finally tasted the bitterness and sourness in different places. A beautiful girl named Xiaofei (Zhou Xianxin) appeared beside Li Hai and slowly walked into his lonely life. Xiao Fei was kind and brave, and her excellent gradually attracted Li Hai's attention, and the two couldn't help but come together. When Wu Ting learned the infidelity of her husband, she decided to use action to defend her marriage.