Underneath the seemingly calm modern city, there are "abnormal things" that ordinary people cannot detect. Chen Xu inherited his parents' second-hand shop called "Shiyi" and a broken ancient bronze lamp. During the day, he is a skilled restorer; at midnight, he is a "restorer" walking in the shadows - repairing those artifacts contaminated with abnormalities, pain or obsession, and appeasing the spirits wandering on the edge of the rules.