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Lei Li (David Chiang) is so proud of his prowess as a swordsman that he has vowed to cut off his right arm and retire from fighting if he ever loses a match. Early in this film, he has the opportunity to put his vow into effect, but circumstances lead him back into fighting. His best friend is killed by a group of thugs, led by a man who fights with a triple-bladed weapon, and Lei Li must avenge this needless death. Of course, now he must fight left-handed, but the bodies pile up, a tribute to his prowess.