During the Dayin period, there was a village hidden deep in the vast mountains that was shrouded in green fog all year round - Qingwu Village. This place is isolated from the world, and villagers have lived here for generations, but strange things have been happening frequently since three years ago: children crying in the middle of the night, missing people leaving only their clothes, and villagers dying suddenly after offering sacrifices. Shen Yan, a down-and-out scholar who was passing by, was trapped in the village due to the sudden and strange heavy fog. As soon as he entered the village, he encountered ashen-looking villagers carrying "sacrifice" towards the back mountain. In order to find her missing father, Lin Wan, a pungent girl, noticed the metaphysical aura in Shen Yan and forcibly formed an alliance with him. As the two conducted in-depth investigations, the village's taboos gradually emerged: no night conversations under the old locust tree at the entrance of the village, no opening of the door when foggy, and no entry into the forbidden area in the back mountain. Behind the green mist, there seems to be a terrifying existence that devours life. The numbness of the villagers, the secrets of the sacrifices, and the traces of the missing all point to a curse that has been sealed for centuries. They not only have to avoid the strange harm in the village, but also find the truth in the fog. But the deeper they go, the more they find that they have been involved in a terrifying whirlpool from which they cannot escape.
