Young men Zhou Xuchuan and Xu Zhiyao fell in love next to the old cinema in Lanxi County, but they separated due to their youthful self-esteem and the pressure of reality.
In the next fifteen years, he went from the campus in Shanghai to the workplace in the capital. He learned to love openly in Cheng Jiahe's bright youth, and understood the hesitation of adults in Liang Qingyan's questioning of reality.
He traveled all the way, thinking that growing up meant reaching a higher place, until he met Xu Zhiyao again in Haishi because of the urban renewal project - she was not waiting where he was, and he was no longer the boy he was then.
When the old tin box of Chaosheng Cinema reappeared, they finally understood: the best reunion is not to go back to the past, but two complete people who actively choose the same specific life.