The Tang emperor is betrayed by one of his most trusted aides who is the general of all the armies. He attacks the palace to establish himself as the new emperor. The real emperor is killed and his daughter commits suicide rather than be taken prisoner.

After her father, a judge, is murdered by corrupt officials, a young woman must set out do recover the Blood Rain Sword, which her father had left to her, and encounters obstacles from the villainous Chao Pai.