Thambi Velu Thondaiman (R. Madhavan) is a rebellious youth who cannot tolerate violence and injustice by any means. His main target is Sankara Pandian (Biju Menon), a rich local goon. Thambi wants Sankara Pandian to leave all his illegal activities and violence. One day Thambi interrupts Archana’s (Pooja Umashankar) stage performance when chasing a wrongdoer. Archana misunderstands Thambi as a rowdy and hates him. But Thambi saves Archana in a restaurant when a few guys try molesting her following which she starts liking him, which gradually transforms into love. Thambi does not reciprocate and wants Archana to stop following him as he has so many enemies in the city.