While driving to a party Amit (Amitabh Bachchan) and his wife Sheela (Moushumi Chatterjee) witness an attempted murder. Amit takes the injured man to the hospital. That very night a mysterious caller asks Amit for the scrap of paper the murdered man was supposed to have dropped in his car. When the caller persists Amit contacts the police and is assured that nothing would happen to him or his family. However his son is kidnapped and Amit is forced to do a deal with the kidnapper. He has to kill the unconscious victim of the assault in exchange of his sons life.