Reshma lives in a small village in a river island of the Brahmaputra. Her father Aminul insists on her early marriage and begetting children rather than going to school. The Mulla Gaonbura lecherously plans to make Reshma his fourth wife. Hafeez, an honest teacher helps Reshma to fulfil her dreams by admitting her in his school. But Mulla Gaonbura spreads a scandal against Hafeez leading to his suicide. A few village youths encourage her and eventually Reshma comes out of the veil of darkness to the light of knowledge