At an unknown time, people who had never been masked, met in the town of Qinghongli. The boy from the city, looking for something lost, accidentally meets a mysterious girl holding a camera and falls into a short and drowsy dream. The young people in the town have illusions and impulses about love, and wantonly respond to life; the hotel owner occasionally immerses himself in his neon world and is not disturbed; the dumb drunken man has an insight into this field, as if he has a connection with the heaven .The old lady is still sitting on the bench, the old train shuttles through the valley jungle, and the whistle sounds every morning and night, entering the dreams of countless people.