BBC Studios在中国大陆首部与本土公司共研开发，并针对微短剧市场量身打造的单元剧。日常生活，平凡人物，每个人都有不可告人的秘事。每一集都会邀请观众进入截然不同的“九号”空间，在有限时长下，体验小人物的故事，绽放人性微光，创造意料之外又情理之中的脑力盛宴，构筑并托举起黑色幽默与无限反转的“九号宇宙”。

三边坡，一处鱼龙混杂的热带异域，一个繁茂与衰败并生的斑驳之地。意外流落三边坡的打工小白沈星（郭麒麟 饰）遇到在多方势力间游走的三边坡和事佬猜叔（吴镇宇 饰），一场冒险，一段善良微光指引下的回归，在留与逃的挣扎中将如何上演。

This series tells a heartwarming story about the friendship, family and growth of three generations in four families in a quadrangle courtyard in Beijing from 1997 to 2001. As high school students, Xie Qiao, Qin Chuan and their friends and family experienced together the big and small events of this era, and faced many troublesome and happy events while they were growing up. The closeness and warmth of their neighbors became a precious treasure in their lives, and with this gift given to them over the years, the children grew up and moved towards a new era.

2020 film directed by Wei Shujun