Chen Jinsheng, a student of the Western-style medical school in the Republic of China, helped Master Shi Shu Leng run the private detective agency "Formo Detective Agency." Tian Buhuan, Nancheng grain merchants can’t find it, and the former empire Zengshi Liang’s family, weird cases are still happening one after another... Ghost market? Jail? Feng Shui? Five Elements? Who is it that is secretly manipulating it! Vendetta? Love rival? aphrodisiac? Gu poison? Who is in control of everything!

Zhang Jiuying arrives in Sihai Town with his apprentices, Zhao Cai and Jin Bao, to attend a wedding at the Li family estate. However, strange events unfold that night: the male servants die under mysterious circumstances, and the maids vanish without a trace. As rumors of a haunting spread, Zhang Jiuying teams up with a local innkeeper and the police chief to investigate, leading them into a deeper and more dangerous mystery.