In order to find his sister Lin Wei who disappeared in Wuyin Village three years ago, reporter Lin Mo stepped into this village shrouded in thick fog and secrets. The last message left by her sister - "They are looking for sacrifices, I saw red silk", became her only clue.
The village is eerie and strange, with the villagers behaving strangely and keeping Lin Wei's existence secret. The red silk wrapped around the old locust tree at the entrance of the village, the eyes peeking behind the doors and windows of the house, the secrets hidden by the village elder Qin's family, and the mysterious symbol related to the disappearance of his sister all reveal something unusual. As Lin Mo explored further, she discovered that the village seemed to hide a terrible past related to the "Mountain God Sacrifice", and her sister's disappearance may be closely related to this. In this foggy village, every step of exploration is accompanied by unknown dangers, and the truth is gradually revealing its ferocious face to her.