The film revolves around an ambitious TV journalist, Pughazhendi, working for “Q TV” who interviews the present Chief Minister of Tamil Nadu. Pughazhendi asks the tough questions, and the Chief Minister starts trembling and ask Pughazhendi to put his money where his mike is, and become the Chief Minister for a day. After using up a few lifelines mentally, Pugazhendi agrees and does such a great job on his first day, that the voters eventually elect him to be their permanent leader. The subsequent unpopularity and jealousy that the Chief Minister goes through results in him taking revenge on Pugazhendi, and how he is stopped forms the crux of the story.
Upon release on November 7, 1999, the film went on to receive positive reviews from film critics and consequently became a large success commercially, winning awards on a regional scale. The film was then dubbed and released in Telugu as Oke Okkadu and later remade in Hindi as Nayak starring Anil Kapoor.