Kaali (Karthi) is an impulsive and short-tempered working class man who works in an IT company and enjoys playing football during his free time. His best friend is Anbu (Kalaiyarasan), who is a young political aspirant. They along with their gang live in the dilapidated flats of the housing board in Vyasarpadi, North Chennai. In a long-standing bloody feud, two factions of a political party have been laying claim to a wall on which they can paint the portraits of their respective political leaders. Anbu, under the local leader of one of the opposing parties, Maari (Charles Vinoth), is determined to claim that wall for their own party. The other party chief is Kannan (Poster Nandakumar) and his son Perumal (Mime Gopi) who are hell bent in making sure that their opponents efforts go in vain. The painting of Kannan's father Krishnappan's (V. I. S. Jayapalan) face has been on the wall for two decades, since the start of the feud. The two parties and their supporters get into frequent clashes and scrapes. In the meantime, Kaali falls in love with Kalaiarasi (Catherine Tresa), and she too reciprocates his feelings.