In the late autumn of 1987, Lin Xiaoyu, a senior girl in high school, met Zhao Lei, a veteran, in the Red Star Video Hall in a small southern town. Under the dim light, a secret love that spans ages quietly sprouts between the truant girl and the calm boss. He handed over warm water and told stories about his military past; she secretly knitted a scarf and looked up at his profile between exam papers. However, the tide of the times is rushing, the video hall is becoming increasingly deserted, and the call of Shenzhen and the pressure of the college entrance examination are approaching at the same time. When the leaves of the sycamore tree fell, he left behind a video tape of "A Chinese Ghost Story": "I will come back when you are admitted to college." The brief intersection of two lonely souls in the era of change created an unforgettable mark of youth.