Depicted is the famous tale known as "Civet for Crown Prince" which allegedly took place in China's Song dynasty.
While passing through the town of Caoqiao, the famous Song dynasty official Bao Zheng is stopped by a villager on behalf of his blind mother.
Twenty years ago, right after Li gave birth to a son, a jealous rival Consort Liu conspired with eunuch Guo Huai to have the infant swapped with a dead civet.
As a result of giving birth to a monster, Li was banished to Yu Chen Palace, while Liu was elevated to the status of Empress.
After Kou killed herself by slamming into a pillar, Guo and the soldiers went to Yu Chen Palace to carry out the burning order, when they saw a hanged body with Li's clothing.