Kathirvel Murugan (Bharath) is a software engineer in Chennai. He shares his room with friend Sakkarai (Santhanam). Kathir hails from Usilampatti but wants to project him as city-bred and his ambition is to settle in USA. Kathir's father Sevaka Pandian (Sampathraj) is against his son's attitude. An influential local chieftain, he is against inter-caste marriage and love. Kathir meets Nisha (Rima Kaleengal), who too wants to go abroad. The latter loses her passport and Kathir helps her find it. S...