Under the rule of Emperor Xuanzong, the Tang Dynasty faces a sudden demonic uprising when foreign Princess Wu Shuang (actress name) arrives. Tang General Xiao Yu Fan (Du Jun Ze) must investigate the mysterious chaos threatening the emperor's life. Aided by his mentors, Xiao follows a trail of clues that reveals a dangerous conspiracy. As time runs short, he races to prevent the impending destruction and save innocent lives. This is a 2023 Chinese historical detective drama directed by Roger Lau.