Oracle of the Dragon

Original title: 狄仁杰之督龙锏

“Mandarin”

Directed by 蓝志伟

During Empress Wu's reign, the court is in turmoil, and a strange drug-related mystery emerges in Zhaoling. Detective Di Renjie teams up with Sima Xiaodao, cracking mechanism puzzles, exposing nobility impersonators, and seizing the Dragon Copper to foil the court conspiracy.