9th century China. 10-year-old general’s daughter Nie Yinniang is abducted by a nun who initiates her into the martial arts transforming her into an exceptional assassin charged with eliminating cruel and corrupt local governors. One day having failed in a task she is sent back by her mistress to the land of her birth with orders to kill the man to whom she was promised – a cousin who now leads the largest military region in North China. After 13 years of exile the young woman must confront her parents her memories and her long-repressed feelings.