Widower R.N. Sharma is the Managing Director of a coal-mine 'Chandmari Colliery' lives with his daughter, Neeta, and is friendly with Advocate Sinha. He had blamed Neeta for his wife's death and had shunned her since her birth. As a result she had been brought up by servants, and lives an independent lifestyle without any checks and controls. When he unexpectedly passes away, he leaves a will making it mandatory for her to marry within 3 months from his passing or lose everything. She and Advocate Srivastava concoct a scheme whereby she marries a convict, Amar, on death-row for killing a miner, then be free of him after he is hanged. For a fee, Amar, who was also employed in the mine, agrees to marry her; the wedding takes place, and she inherits the entire estate. Complications arise when his conviction is set aside, and he decides to move in with her in order to fulfill his marital obligations - creating havoc and chaos in her life.