Poovalli Induchoodan (Mohanlal) is sentenced for six years prison life for murdering his classmate. Induchoodan, the only son of Justice Maranchery Karunakara Menon (Thilakan) was framed in the case by Manapally Madhavan Nambiar (Narayanan Nair) and his crony DYSP Sankaranarayanan (Bheeman Raghu) to take revenge on idealist judge Menon who had earlier given jail sentence to Manapally in a corruption case. The story begins with Induchoodan released and his father & mother coming to stay with him.