Detective Dee: The Four Heavenly Kings

狄仁杰之四大天王

Also known as Détective Dee 3 La Légende des rois célestes, Détective Dee III - La Légende des Rois célestes, Detective Dee e i 4 Re Celesti, 王朝の陰謀　闇の四天王と黄金のドラゴン, Ouchou no Inbou: Yami no Shitennou to Ougon no Dragon

Dee, the detective serving Chinese empress Wu Zetian, is called upon to investigate a series of strange events in Loyang, including the appearance of mysterious warriors wearing Chiyou ghost masks, foxes that speak human language and the pillar sculptures in the palace coming alive.