Based mostly upon the human rights violations by the police and the jail authorities in India through the emergency of 1975–1977, the movie tells the story of Unnikrishnan, an ex-convict. Not too long ago launched from jail, Unnikrishnan relays his life story to fellow passengers on a bus. He tells of his orphan upbringing, profession as a forest official, and love for a younger lady named Thulasi, whom he promised he'd marry, earlier than he was erroneously arrested for a criminal offense he didn't commit.
