In March in the south of the Yangtze River, it is misty and rainy. In the Yanchen Medical Center next to Hanshan Temple, the genius doctor Su Yanchen used silver needles to help the world, regardless of the right and wrong. Until that day, the deceased, covered in bruises, was carried into the medical center - the cinnabar poison invaded the body and killed him within half an hour. It was by no means an ordinary poisoning.
The detective Lu Jingyuan who was ordered to investigate the case followed the traces. One is a cold-faced doctor who is skillful and kind, and the other is a murderous and decisive killer. The two fight side by side and jointly solve the "evil bone lantern sacrifice", "ghost wedding", "corpse robbery" and other strange murder cases that combine folk taboos and magic.
As the Miao border descended, the blood curses of the Bon religion in Tibetan areas, and the shamanic witchcraft came to light one after another, a huge conspiracy affecting the martial arts world gradually became clear - the long-extinct cult "Mandala Cult" has resurrected in the name of folk customs in various places.
What is even more shocking is that Lu Jingyuan's long-lost mother, Po Azan, who is controlled by evil spirits, unexpectedly appears, and Su Yanchen's sister, Su Qingyao, who is proficient in Gu magic, also steps into the game at this time. The four of them work together, from the Jiangnan water town to the hinterland of Miao territory, from the northwest desert to the ancient Wuxian ruins, to pursue the truth among the light of swords and poison.
When the lost ancient witchcraft reappears in the world, when justice and hatred clash to the death - can they keep the truth in their hearts in the confusion of mist and rain?
Intention: Righteousness will prevail, evil will not overwhelm good