Hong Kong Rong Hua Co.

The Devil Warrior is a Hong Kong Martial Arts movie starring Sammo Hung

On his wedding night Mar Tien Lang, a prosperous businessman and instructor of 'The Magic Kick' technique, is attacked in his villa by the vilainous Fang Kang.

Doctor and whip-wielding Hero Chai Tin-sum travels to an isolated village where he finds the population dying of the plague while being oppressed by the Ku family and their fortress. The family has cutoff the supply of fresh water to the village causing calamity. Chai must find a way to defeat the Ku family and restore water or the village will die.

1971 movie by Yang Su staring Chen Chen