A police officer investigates an accident involving a team of workers at a petroleum plant whose bus has fallen into a ravine.

An honest youth leader is irked by his corrupt-politician father and his political aspirations to become the chief minister by bullying the villagers. He decides to contest the elections and help the villagers but faces severe oppressions from his brothers-in-law. In a turn of events, his father is killed and the youth leader is blamed for his murder.

A doting brother gets his sister married into a nice family. A few months later, her husband sends her away. Disheartened, she comes to her brother who decides to restore peace in her married life.

Thangapandi, a villager, falls in love with Mayakka, a pretty woman. But Thangapandi’s father wants him to marry Rasathi, a relative.

The story revolves around an insecure teetotaler Sarathy Raman (Karunas), who feels bad due to his dark skin (his wife Vasanthi (Karthika) is fairer than him), who is often the brunt of many jokes. Because he feels inferior to his wife, he begins to suspect her of infidelity and thinks that she will one day elope with a lover. After a misunderstanding, Sarathy and his mother are estranged, which further weakens the bond between Sarathy and Vasanthi. How Sarathy resolves his issues and gets back together with Vasanthi forms the rest of the story.