Set in the wu xia world of noble fighters where justice is served by the point of a sword sing pei pei (polly shang kuan) arrives in town to investigate the theft of eighteen jade arhats (figurines). joining her is swordsman kung chin ya (lee jan wa) who agrees to find the murderer of a prominent citizen and martial artist named wong chun wei (chang yi). as their investigations proceed chin ya finds himself the target of dozens of attacks most offered as a test of skill. it turns out that the person responsible is the only other master of the lo han style and he wants to make sure he is the only master! hu ying pao (lo lieh) becomes the prine suspect in the murder case but pei pei sets a trap that ultimately reveals the real murderer who also happens to be the arhats thief and the lo han master all in one.