The story takes place in a modern city. Lin Xiaoan opens a spiritual case office because of his family inheritance and supernatural origins. By chance, he met Shen Ruobing and was involved in a series of supernatural cases in the city. The two teamed up with their best friend Wang Wei and a troublesome ghost Aunt Gui to start an ups and downs investigation journey. The three volumes focus on "supernatural investigation", "depth into the spiritual world" and "truth redemption" respectively. The stories in each volume are tense and humorous, and the main line continues to advance, revealing the secrets of the city and family behind them, and gradually growing. Finally, the relationship between the spirit and the human being is revealed, and everyone's pain is redeemed. The story comes to a successful conclusion.
