Lin Xuanzhen, the last descendant of orthodox Taoism, was forced to go down the mountain because his sect was destroyed and his master entrusted him with the "responsibility of protecting the world" before his death. He was admitted to the police academy and became a police officer of the Special Case Division. In the modern city, Taoist wisdom and criminal investigation methods are used to solve a series of unsolved cases that seem supernatural but actually hide the darkness and ancient secrets of human nature.
