During the Republic of China, the old carpenter Li Maocai accidentally picked up a bronze mirror engraved with a nine-tailed fox pattern. Since then, his temperament has changed drastically - he painted his eyebrows with grease and behaved strangely. His son Li Chengye suspected that his father was possessed by a fox demon, so he secretly investigated and found that the bronze mirror was actually the inner elixir of the fox demon, which can absorb people's souls. In order to save his father, Li Chengye rushed to Baiyun Temple in the rain and asked for help from Taoist Master Qingxu, who was profound in Taoism. Little did he know that the fox demon had already targeted the Li family's bloodline and was planning a revenge that spanned thirty years.