Gu Ningchuan was originally the most ordinary office worker in a big city, living day to day. But one day, after a subway accident, he unexpectedly awakened his "vision" ability and was able to see visions and "cracks" hidden under the city. At the same time, novelist Ye Shuyao, detective Xu Yuanfei, urban explorer Qiu Ailin, entrepreneur Zhao Yiheng and others were involved in the same series of strange events due to various opportunities. Some people began to solve the situation for themselves, some tried their best to find out the truth, and some tried to control everything - what gradually emerged was not only the undercurrent at the bottom of the city, but also the deep cracks in the human heart. As their abilities grow and events become more confusing, the five people struggle on the edge of reality and illusion, morality and desire, searching for the belonging of themselves and the world in the interlayer of multiple dreams and reality. In the end, can they keep their humanity and hope on the boundary between urban reality and imagination?
