She sha shou (1975)

Director: Kuei Chih-Hung
Cast: Chow Gat, Helen Ko Ti-Hua, Kam Kwok-Leung, Lam Fung, Maggie Li Lin-Lin, Richard Chan Chun, Terry Lau Wai-Yue, Wong Ching-Ho

Synopsis:

A young man who has been beaten, abused, humiliated and laughed at all his life finds that he has an unusual empathy with snakes. He can talk to them and they understand him, and eventually he finds that he can get them to do his bidding. He decides to use his newfound friends to take his revenge on everyone who ever did him wrong.