Fang Kang is a loyal soldier, the lower-class son of a servant who died saving the master’s life. The master takes this seriously, but the younger generation does not, and master’s daughter Pei-er cuts off his arm. A bleeding Kang is rescued by a cute girl called Chiao Chiao who happens to guard a book of secret fighting techniques. He perfects his one-armed swordsmanship, returns in time to save his master from baddies Smiling Tiger (Ti Tang) and Long-Armed Devil (Chih-Ching Yang), who have been easily killing the master’s men by clamping their swords then knifing them with the other arm. Even after the master’s men see how this approach works, they keep getting killed because they have only one fighting tactic. One-arm with his broken sword is immune to the clamp, kicks everyone’s ass then retires with his Chiao.
Lot of people standing still and talking, but some inventive editing (between and within scenes) makes up for that somewhat. IMDB calls star Yu Wang “the first screen hero of modern Chinese cinema” and shows him appearing in seven one-armed movies (including major crossover Zatoichi Meets the One-Armed Swordsman).