Rajapart Rangadurai narrates the life journey of a theatre actor. He is parentless who joins the stage under V.K Ramasamy. He takes care of his brother Baskar and sister Seetha. His brother, however, is not content being poor, fakes being rich and gets married to Vasanthi who is the daughter of an industrialist played by T.K Bhagavathi. Rangadurai's plan of getting his sister married from the dowry he would get for his brother's marriage with Alamel, daughter of industrialist Somasundaram is thrown over the bridge by his brother's action. Rangadurai gets married to Alamel who was secretly in love with him being a fan of his stage performances where he is unparalleled and well respected.
