Sethumadhavan (Mohanlal) is released after serving imprisonment of seven years in central jail for murdering Keerikadan Jose, a hardcore criminal. Though it was by accident, which he did to save his life, the society is not ready to accept it. For them he is now a hardcore criminal, who had killed someone who ruled the streets for long years. Upon release Sethu visits the medical college to meet his younger brother who is doing a course in medicine. But his brother responds coldly and openly ask him not to make any further visits as it may hurt his reputation. Sethu realizes that the world around him has undergone a severe change. At home, though his mother (Kaviyoor Ponnamma) is elated to see him, his father Achuthan Nair (Thilakan) is not too keen on having him at home. Achuthan Nair, who always wanted Sethu to be a police inspector broke down completely after Sethu's conviction and has turned into an alcoholic. Remorseful, Sethu looks forward to building up a life outside jail, but fails to find employment due to the tag of an 'ex-convict' labelled on him. Sethu tries to catch up with his old friend Najeeb (Maniyan Pillai Raju), who tells him about the present physical condition of Parameshwaran (Johny), whom Sethu had severely assaulted in a bid to save his own life. Fully paralysed, Parameshwaran now runs a cycle repair shop with the help of his wife and daughter. Sethu meets Parameshawaran, who now is now a completely changed man. With the help of Parameshwaran, Sethu begins selling fish for a living. Keerikadan Jose also had an affair with another woman(Santhi Krishna) and had two children,Indu (Surbhi Javeri Vyas) and his brother. The illegitimate wife and children of Keerikadan suffer constant threats from Keerikadan's family after his death. The siblings of Keerikadan, who were looking for a chance to unleash vengeance upon Sethu, attack him violently. He is saved by Indu, who happens to be the illegitimate daughter of Keerikadan. She expresses sympathy