Uyarndha Ullam
Kamal Haasan is very kind person and believes in all. Radharavi befriends him posing as a good person. Using Kamal's weakness for drinking and helping others, Radharavi usurps all his money. Ambika, an employee of Kamal tries to correct him, but of no use. As the property goes to debtors, Kamal becomes a pauper. The change in Kamal's approach to life from this point is the rest of the story.
Starring Kamal Haasan, Ambika, Radha Ravi, V. K. Ramasamy, Janagaraj, Major Sundarrajan, Y. G. Mahendran, Kovai Sarala
Watch "Uyarndha Ullam" on Amazon released in 1985. It's a drama and action & adventure movie, and has a rating of 7.3 out of 10 from Imdb which is usually fine for this kind of movie, and is currently only available for purchase or rent.