This film tells the story of Yan Xiaoxia, a young exorcist, who joins the Exorcist Hall after inspiration and meets Sima Sanniang, a man dressed as a woman, and the devil who is incarnated as a mortal painting garden. Several people experienced joys and sorrows in laughter, anger and scolding, and realized the true meaning of life. In the end, the young exorcists smashed the devil's conspiracy, and Yan Xiaoxia and Sanniang also gained true love. This film describes a society in an imaginary era in a romantic way. It tells the touching love story with audio-visual methods, showing people's pursuit of justice, yearning for a better life and spirit of adventure for the unknown. The film promotes the excellent traditional culture of the Chinese nation while paying attention to the development of the times. It uses a light comedy expression method to portray the characters in the film vividly, humorously and profoundly, giving people a high-spirited spiritual power, allowing the audience to convey positive energy in entertainment, and creating a fresh, healthy and positive online space for the majority of netizens.