College student Lin Jianqing (Jing Boran) and fellow villager Fang Xiaoxiao (Zhou Dongyu) met on a train during the Spring Festival travel rush, and the two young people who moved to Beijing began to struggle together. The New Year's Eve in a small town in the northeast, the computer parts city in Zhongguancun, the snowy streets of Beijing, the vendors in the underground passages, and the various tenants in the rental houses all witnessed their joys and sorrows. Xiaoxiao, who had been deceived repeatedly in her emotions, finally got together with Jianqing, who had just graduated. Year after year, no matter how unhappy their lives were, they went home together and had New Year's Eve dinner in the small restaurant opened by Jianqing's father (Tian Zhuangzhuang), as close as a family. But as time passed, the two began to have differences, love, break up, miss, and reunite ten years later... Later, they could never go back.