The genius Taoist Long Yun arrives in the city of Tianshui, where he accidentally falls into a trap carefully laid by his master and becomes the Tang family's live-in son-in-law. From then on, he solves one mystery after another: chronic illnesses that have resisted treatment, bizarre supernatural incidents, wondrous Feng Shui formations, and sinister ghost stories. See how this genius Taoist's journey into the mortal world leads to a series of romantic love stories between immortals and mortals.