游侠杜孟飞（何家劲）奉师命下山闯荡江湖，途遇黑道中人捉拿沐龙门女弟子沐婉儿（关之琳），杜挺身相救，沐万分感激。未几，杜又见黑道中人围攻少女李赛男（惠英红），乃将之救出，孰料李反斥杜坏其好事，令杜啼笑皆非。及后，杜无意中听得一段二十年前的江湖恩怨，并得知黑道首领乃李之杀父仇人，而沐则是黑道首领失散了的女儿

From first-time director Lung Yi Sheng comes Demon Of The Lute, a 1983 fantasy swordplay epic featuring a ragtag group of heroes as they face off against a demonic force for evil! Chock full of fantastical characters blessed with otherworldly powers, enchanted weapons, and the remarkable ability to defy gravity at will, Demon Of The Lute is a comic book influenced wuxia sure to tickle the fancy of martial arts fans both young and old