Tsui Hark’s second prequel to his career-resurrecting hit Detective Dee and the Mystery of the Phantom Flame (2010), picks up right where there previous installment, Rise of the Sea Dragon, left off: Tang Emperor Gaozong entrusting Di Renjie (Mark Chao) with the Dragon-taming mace, a powerful weapon made of stardust steel and a symbol of his promotion to the highest level of responsibility towards the throne. But Wu Zetian (Carina Lau), the Emperor’s chief consort and co-ruler of the Chinese empire, views this promotion as a critical mistake, and she orders Yuchi Zhenjin (William Feng), the head of the Justice Department and Di Renjie’s sworn brother after the events of the previous film, to recover the mace. Torn between brotherly loyalty and imperial duty, and highly suspicious of the shady quartet of Taoist fighters the Empress assigned to assist him, Yuchi nevertheless obeys orders. Yet Di Renjie is always one step ahead, and Wu Zetian – councelled by a mysterious faceless lord – resorts to framing him for an assassination attempt on a member of the imperial family. Things are further complicated by the appearance at the imperial court of a giant, deadly golden dragon.

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