A young girl who witnesses the murder of her parents is saved by a knight after her feet go permanently numb from standing in icy water while hiding. After ten years of martial arts training, she seeks revenge, until the son of her parent's murderer convinces her to reconsider, offering to cure the foot ailment she has suffered since that night. Lo Wei (director of The Big Boss and Fist of Fury) joined Shaw Brothers in 1965, and helmed more than a dozen movies for the studio. This, however, was his very last Shaw Brothers film, and he shot the works with it. He co-wrote and co-starred in the tale of a frostbitten swordswoman out for revenge on the people who killed her parents and stole the coveted Tsui Feng sword. An audience can only marvel at Li Ching's talent as she struggles to kill her enemies and cure her hypothermia in time for the final "snow-down."