A highly trained and exceptionally deadly swordsman looks for revenge after being caught in the middle of a power struggle that results in the assassination of an innocent woman's family.
The high-ranking officials in Chang'an wanted to see the masterpiece of the painter Su Daoqing-"Hell Picture". At the same time, there were a series of lbizarre murders based on the "dreadful prophecy" of the picture of hell. For a time, the theory of "Heaven's Punishment" in Chang'an City was widely spread. Detective Di Renjie and his assistant Siniang were framed by the murderer, and hunted down by Ouyang Ping, the chief of the Dali Temple.
The blind swordsman, skilled in martial arts, named Cheng Xiazi (Xie Miao), accidentally saves Zhang Xiaoyu (Yang Enyou), who has suffered from the destruction of his family. Under the persuasion of the orphan Xiaoyu, Cheng reluctantly keeps him by his side and teaches him skills. Xiaoyu also waits for the opportunity to seek revenge.
