Lin Xiaoyong founded the "Ghost Detective Agency" to avoid supernatural harassment, but unexpectedly encountered a series of difficult and bizarre cases, and met partners with distinctive personalities such as Su Nianxi, Sun Dazhuang, and Wang Yutong. During the investigation, they gradually revealed a larger conspiracy between humans and ghosts, and the power structure of the supernatural world also emerged. Love and hate, funny misunderstandings and life and death tests are constantly unfolding. Each of the three volumes of the story unfolds new puzzles and crises. In the end, in the final showdown, all members unravel their knots and promote changes in the world of humans and ghosts.