Sethupathy (Prabhu) and his young brother Sevathayya (Murali) are fond of their only sister, Maragadham (Navya Nair), who lives in Melur village. Vairaghya Bhoopathy (Nassar) is the chief of the neighboring village Aalur, and the two families have been rivals for generations. But Maragadham falls for Nallarasu (Vineeth), Bhoopathy's brother. Then comes Alakalan (Kalabhavan Mani), a schemer who wants to marry Maragadham. Both the brothers humiliate him and send him back. He ends up marrying Bhoopathy's sister Angayarkanni (Roja) but manages to create an enmity between the two families. Meanwhile, a dancer (Malavika) falls in love with Sethupathy. Alakalan has an eye on her as well. A turn of events results in Bhoopathy's suicide. Now, Nallarasu takes revenge on Sethupathy, who was responsible for his brother's death, so he marries Maragadham only to torture her.
