In the early years of the Republic of China, Ethan Su, who studied in France, and his girlfriend Imani Su return to their hometown to visit their family, but they didn't expect that bizarre cases would follow them to Lord Su's house. First, Imani Su's second uncle is murdered. During the investigation, Ethan Su, a medical student, is "drafted" by Chief Inspector Davies to become a forensic consultant, and the two forge a friendship. Afterwards, the new chief inspector and the forensic doctor solve one bizarre case after another in the city: Why was a prostitute poisoned to death by the poison she bought herself? How many secrets of the wealthy are hidden behind the corpse of a woman whose nine orifices were sewn up? How is a perfect alibi implemented? Why did the boss of the steamed bun shop come back to life after death? What drives water ghosts to steal souls... At the same time, dark clouds also shroud Lord Su's house, where guards and servants die one after another, and the figure hidden in the darkness gradually emerges. Ten years of hatred, a moment of power, like reincarnation, all of this will come to an end on the same stormy night.