The Fearless Duo(1979)

Yuen Chu & Yuen Qiu, star as two sisters whose family is slayed by the merciless 'Ghost Leg Killer' (Hwang Jang Lee). They change their names and go into hiding to perfect their kung fu techniques. Meanwhile, a happy go lucky wanderer by the name of Ah Sam (Lau Ga-Yung) is in search of a Martial Arts master to teach him the art of Kung Fu.