小明坐车跟一位老人聊天，老人回忆了他年轻时代的爱情，小明也回忆了他的爱情与亲情，他们一同下了车，原来老人就是小明的父亲，只是得了阿尔兹海默症谁也不记得了，但他还保留着最珍贵的东西——家族记忆。 Xiaoming was chatting with an old man in the car. The old man recalled his love in his youth, and Xiaoming also recalled his love and family affection. They got out of the car together. It turned out that the old man was Xiao Ming's father, but he had Alzheimer's disease. No one can remember it, but he still has the most precious thing - family memory.