Weird Cases in the Wild: The Dragon Grottoes (2020)

In order to save the lives of the villagers, Zhang Yingchuan and Zhang Ming, who went to the cursed Jinryeong Dragon Cave to find medicinal herbs, are caught by the golden mask guarding the place, and Zhang Ming is killed. Years later, Zhang Ming's daughter, Zhang Xiaoye, becomes suspicious of her uncle Zhang Yingchuan's words that her father died of an illness and becomes infected with 'popular poison' while trying to enter the Jinling Dragon Cave...