Hey, old man!

Liu Ertie (Li Xuejian) who is over 60 years old ) is a retired train driver. He has the perseverance and stubbornness of people from that era, and he also has similar clumsiness and stubbornness when it comes to his children. Ertie likes to drink a few sips every day. When he is drunk, his relationship with his son becomes a little tense. Liu Ertie's son Haipi (played by Huang Lei) is over thirty and has achieved nothing and can only make a living by delivering express delivery. He loves to make fooling around with his buddies. He hated everything about his father, and interactions between father and son often ended in loud quarrels. Childhood sweetheart Yi Shuang (played by Song Jia)'s plan to go to the United States is thwarted, and the young people can only lick each other's wounds to comfort each other. One day, Old Man Liu was diagnosed with Alzheimer's disease. His memory was lost day by day. He forgot many troubles and only remembered his son's well-behaved appearance. My dearest and most annoying person is lost in the city of memory. Can I still hold his hand?