The modern city A is prosperous on the surface, but strange phenomena have been frequent since a few years ago. Some people promote urban legends, some people disappear quietly, and some people witness paranormal phenomena. Xu Jingtang, a white-collar worker, originally wanted to live a normal life, but was involved in a bizarre incident after a late-night bus accident and awakened the ability to sense "cracks in reality." Female detective Lu Ningchu investigates the corresponding incident, intertwined with the pursuit of journalist Fang Xingzhao, and the three team up to uncover the secret experiment of "cracked window technology" and the truth about the "border" of the city's supernatural organization. Technology, superpowers, ordinary people and organizations are advancing in parallel along the main lines. Behind each person are different families and growth stories, but their fates are intertwined due to the miracle of the city's "cracked windows". As the cracks spread, reality and illusion, good and evil, reason, desire, friendship and love gradually intersect. Who can protect themselves and save the city in the ripples of urban imagination?
