The film is set in 1860 at Chandipur, in rural Bengal, India. Kalikinkar Roy, the patriarch, is an aging widower. He is a respected landlord and a devotee of the Hindu goddess, Kali. Umaprasad, Doyamoyee's husband, is away studying in Calcutta. She looks after her old father-in-law. She has a soft spot for her nephew Khoka, with whom she enjoys a fond relationship. Roy has a revelation in a dream that his daughter-in-law Doyamoyee is an incarnation, of the goddess Kali. He insists she be worshiped. Then, a dying child is placed at her feet and he is miraculously cured. As the news spreads, the aged, sick and the poor come in hundreds, seeking cures and comfort. As Doyamoyee's husband. Umaprasad learns about the events, he returns home to her rescue. Umaprasad attacks the tradition and tries to reason with his father and tells him that he has gone insane. The father is unmoved. To him, the miracle cure demonstrates the truth of his beliefs. Umaprasad tries to take her away, but to his surprise finds that she too has become convinced of her divine status. Doyamoyee's nephew, the child Khoka, falls ill and is placed in her care. The child dies for lack of medical treatment in her arm s. Her husband tries again to persuade her but it is too late. The child's death has shattered her. Doyamoyee, the proclaimed goddess has gone mad. As he calls her, she is seen running away into a field and vanishing into the mist.