Shen Xinghe received the news that his father Shen Jianguo died mysteriously in the ancient well at the head of the village, and returned to the mysterious and mysterious Huaidi Village. As soon as he stepped into the old house, a series of strange things happened one after another: his third uncle behaved strangely, and the black dirt in his wrinkles seemed to be crawling; the dark green well water on the stove was filled with strange foam, which looked like countless tiny fingernails moving; a dark shadow wearing his father's coat hung on the old locust tree outside the window, with hollow eyes and twisted posture.
A strange text message warned him not to drink the well water, and the long-haired human figure emerging from the water tank and the house charm that quickly turned black and seeped black water on the door panel all indicated that danger was approaching. With empty eyes, the villagers lifted him to the well platform and called him "the best sacrifice."
As the truth gradually unfolds, he discovers that his father's death is closely related to the secrets at the bottom of the well - here is the troupe who drowned in the late Qing Dynasty, the copper lock hidden by his father and the note "the well rope is not long enough", hinting at a deeper horror. When a huge black shadow wrapped in black threads and covered with human-shaped cocoons rose from the bottom of the well, and one of the cocoons cracked open to reveal the face of his mother who disappeared twenty years ago, Shen Xinghe realized that the ancient well in Huaidi Village was not only connected to the underworld, but also hid the curses and debts of the Shen family and the village for generations.