Muthappa, a poor singer falls in love with the sister of a cruel landlord Rajalingam. After surviving a murder attempt, Muthappa marries his ladylove. He is shocked to learn that Rajalingam has had a change of heart thereby accepting the relation. However, that night Muttappa and his wife are shifted to a secret and separate prisons by her brother, an evil landlord in such a way that they can never meet each other. After the incident he forbids love in the village and also closes the temple where his sister's marriage was conducted. People forget the presumably dead Muthappa.

Several years later, Parthiban, a courageous young man arrives in the village openly defying the laws of the landlord. He reopens the village temple and helps in uniting lovers. He even humiliates the arrogant children of the landlord much to his anger. On a journey the landlord who hears the long forgotten song of Muthappa confronts the singer who happens to be Parthiban and is shocked to find his similarities to Muthappa.

Who is Parthiban? Is he related to Muthappa? Will Muthappa escape from the prison? What happens later forms the crux of the story.