Vayanadan Thamban is a 1978 Indian Malayalam-language horror film directed by A. Vincent and produced by S. Hariharan a Director of Radio Advertising Services, starring Kamal Haasan and Latha . Kamal Haasan plays the role of a 100-year-old warlock. The film was dubbed in Tamil-language as Kanni Vettai and later Hindi-language as Pyasa Shaitan with added scenes by director Joginder. The horror theme was the first of its kind when it was released. The movie is about an old warlock who seduces women for a devil to gain youth in return.

Latha paired with Kamal Haasan in first time in this movie and acting without makeup. The film hit at box office.