The story takes place in the distant ancient times, in which humans and demons coexist and there is no peace in the world. Wang Sheng (played by Alex Fong) is an ordinary scholar. In the troubled times, he is timid and cowardly and only wants to study and live in peace. One day, a mysterious woman named Xian'er (played by Chrissie Chau) suddenly appeared in front of Wang Sheng uninvited. Although Wang Sheng did not know who Xian'er was, he was still deeply attracted by the charm she exuded. Since the appearance of Xian'er, bizarre murders have occurred repeatedly in the city. The victims all died because their hearts were taken out. No one knows where these missing hearts have gone. The girl Xiao Cui (played by Tan Lina) has a crush on Wang Sheng. Seeing that he was fascinated by Xian'er, Xiao Cui felt very uncomfortable. By chance, Xiao Cui glimpsed the secret of Xian'er's magic to confuse Wang Sheng. She was anxious and decided to uncover Xian'er's "painted skin" by her own strength.