Nastanirh takes place in late 19th-century Bengal and explores the lives of the "Bhadralok", Bengalis of wealth who were part of the Bengal Renaissance and highly influenced by the Brahmo Samaj. Despite his liberal ideas, Bhupati is blind to the loneliness and dissatisfaction of his wife, Charu. It is only with the appearance of his cousin, Amal, who incites passionate feelings in Charu, that Bhupati realizes what he has lost.