故事发生在长沙的一个奇妙的夜晚。夜猫子景为为（尹昉 饰）在书店邂逅了明早将要离开故乡的何西西（张婧仪 饰），俩人相约搭伙夜游。何西西聊起同父异母的哥哥，脱口秀演员何岸（张艺兴 饰），就在今晚的演出上，何岸的父亲（罗钢 饰）出现在观众席中，俩人不欢而散。另一边，陈清智（白宇帆 饰）、梁宝琦（周思羽 饰）、老谢（吴军 饰）守护着摩天轮，他们边欣赏夜景，边感叹打工不易。夜更深了，这一晚也是网红大排档老板娘丽姐（苏岩 饰）最后一次掌勺做粉，她决定让自己的徒弟旭哥（吴昊宸 饰）接手继续经营大排档。夜晚即将过去，一群人一起坐在大排档里嗦粉，邂逅、热爱、留下、离开、和解、团圆，都发生在这座城市里，每个人都找到了深爱这里的理由。
Plot Summary:The story takes place on a wonderful night in Changsha. Nightbird Jing Weiwei met He Xixi, who was about to leave her hometown tomorrow morning at a bookstore, and they arranged to take a night trip together. He Xixi talked about her half brother He An who was a talk show actor. At that night's performance, He An's father appeared in the audience and the two parted ways unhappily. On the other side, Chen Qingzhi, Liang Baoqi and Lao Xie are guarding the Ferris wheel. While enjoying the night scene, they lament that it is not easy to work. As the night deepened, it was also the last time that Li Jie, the owner of the internet celebrity food stall, would make a fan. She decided to let her apprentice, Xu Ge, take over and continue running the food stall. Night is about to pass, and a group of people are sitting together in the stalls chatting and chatting. Encountering, loving, staying, leaving, reconciling, and reuniting all happen in this city, and everyone has found a reason to love this place deeply.
