"aren't you afraid?" Zhao Nanfeng, 75, and Li Meizi, 71, are a couple with Alzheimer's disease. In their 45th year of marriage, the couple are getting closer and closer to each other physically and mentally, and now they seem to be the only ones left in the world. Although the memory of each day is becoming more and more blurred, the dreams that have been gradually forgotten in order to make a living over the years are becoming more and more clear.