The film tells the story of the snake demon Liqing who charms all living beings. In order to monopolize Wang Sheng, who fell in love at first sight, she enters Wang Sheng's house by any means, and designs to "swap skins" with Wang Sheng's wife Xu Pan. But Liqing did not expect that her actions repeatedly disobeyed her mother-in-law, who collects men's souls, and her selfishness completely angered her, causing Wang Sheng to be in danger again and again. , Can the love between the two continue?