Kalimuthu is the lead singer of a group performing Villu Paatu. The village head decides to reconstruct the tumbledown village temple and gives Kalimuthu responsibility for funding money. Finally, the music director Ilaiyaraaja helps them financially. Then, Kalimuthu approaches a reputed sculptor from another village. The sculptor and his daughter Abhirami come to their village. Later, Kalimuthu and Abhirami fall in love with each other. Abhirami's father wants to marry Abhirami to his nephew Rajasekharan while the village head's son Chelladurai , a womanizer, has an eye for Abhirami. What transpires later forms the crux of the story.

Rani, an orphan, meets Pichai in college and falls in love with him. Rani becomes a top cop and Pichai, a collector. But soon Pichai becomes the target of smuggler Rajarathnam, an influential, ruthless crook and his son Murali.

Raghu, an atheist archaeologist, and his father goes to an isolated village for research, his father disappears mysteriously and Raghu finds out a strange prophecy : God will come to earth on Purnima day at the Nagakali Amman temple and the people who will submerge completely under the waterfall near the temple will be cured of any disease. His colleague Pathma informs her blind Journalist friend Divya and the news reaches the public. Pathma is in love with Naveen, in the final stages of cancer. Soon, an atheist terrorist group, led by Saravanan, try to destroy the temple. Saravanan's sister and brother-in-law were brutally killed by the temple's donor. Police officer Hari, Divya's brother, is charged with eradicating the terrorist group. Pathma believes in this prophecy, gets married to Naveen and takes him to the temple. Divya compels Hari to come with him to restore her sight and he agrees. A race against the clock starts.

Selvam, a criminal, goes to Hyderabad to start a new life and falls in love with a dancer. When they decide to get married, events from his past starts to haunt him.