Jingjing Ma

The young Dee Renjie (Mark Chao) arrives in the Imperial Capital, intent to become an officer of the law. Empress Wu (Carina Lau), who is at the start of her reign, has sent the fiery-haired Detective Yuchi (Feng Shaofeng) to investigate a sea monster that stalks the city at night. By chance, both Dee and Yuchi fight off the creature when it attacks a ceremonial procession carrying the beautiful courtesan Yin (Angelababy) to be sacrificed at a temple to appease the Gods.