In the third film of the critically acclaimed and popular Detective Dee franchise, Detective Dee is called upon to investigate a series of strange events during the Tang Dynasty in China. While he is defending himself against accusations of wrong-doing from his most formidable opponent Empress Wu, a crime wave has overtaken the city, marked by strange occurrences where warriors are wearing totem masks, foxes are speaking in human language, the palace’s dragon sculptures are coming to life, and the Heavenly Kings in the temple are showing angry faces - all of which conspire to give the resourceful and cunning detective his most difficult case ever.