Thangaikku Oru Thalattu

Thangaikku Oru Thalattu English A Lullaby To Sister is a 1990 Tamil language drama film directed by K. S. Madhangan. The film features Arjun Sarja and Seetha in lead roles. The film, produced by P. Ramakrishnan, had musical score by Sankar Ganesh and was released onNovember 1990.

J. M. J Ramesh Raja is a businessman who cheated and killed rich persons. Arun Delhi Ganesh, an honest journalist, is killed by J. M. Js henchmen. Prakash, who looks like Gopi, arrests, an innocent young woman, Priya Seetha. Janaki, Prakashs sister, is Priyas friend. Prakash believed that Priya was a prostitute but in a function, he knows her real identity and he apologizes to Priya.Priya becomes a journalist like her brother. With Aruns written and photos evidence, she investigates on J. M. J with Prakashs help. ........

Source: Wikipedia