The talented herbalist Xu Xian had just started his own medicine shop where he created remedies with the help of his wife, Bai Su Zhen. One day a monk named Fa Hai approached him, warning him that there was a demon in his house. The demon, he said, was Bai Su Zhen. Xu Xian laughed. How could his kind-hearted wife be a demon?

才华横溢的中医许仙刚刚开了自己的药店，在妻子白素贞的帮助下，他创造了一些药方。有一天，一个叫法海的和尚找到他，警告他说他的房子里有一个妖怪。他说，这个妖怪就是白素贞。许仙笑了。他心地善良的妻子怎么会是妖怪呢？