The movie begins with the engagement of Saravana's (Silambarasan) sister (Tharika). The house is full of joy and laughter, awaiting Saravana's return from college. However, when Saravana returns, the family members are shocked. He has brought home a distraught and frightened girl, whom he introduces as his friend Sadhana (Jyothika). The marriage preparations continue with everyone wondering who Sadhana is. However, Saravana's uncle (Nizhalgal Ravi) cannot control his emotions. He wants his daughter (Meghna Naidu) to marry Saravana and is afraid that Sadhana will spoil this. Eventually, Saravana's uncle confronts him about Sadhana. Saravana gets upset, and an argument ensues. Later, as Saravana and Sadhana go to a restaurant to eat, a gang comes. Saravana chases them for a while and beats all of them up. Realizing that he has left Sadhana behind, Saravana returns to the restaurant. However, Sadhana is not there. Frightened, he returns home to find her there. She was rescued by her brother's assistant. Finally, Saravana's father (Radha Ravi) forces him to tell them what is going on. Then, a flashback begins.