Ling Nan zhi hu
The story is about a humble man known as the Canton Kid, who just happens to have extraordinary kung fu talent. He’s often found sticking up for the downtrodden and prostitutes and finally paying a price for it.
Starring Yeung Wai, Chiang Nan, Eddy Ko, Tina Chin Fei
Watch "Ling Nan zhi hu" on Amazon released in 1973. It's a drama and action & adventure movie, and has a rating of 4.9 out of 10 from Imdb which is fairly low for this kind of movie, and is currently only available for purchase or rent.