Hariram (Motilal) lives a poor lifestyle along with his wife and a young son, Rattan (Romi). He is in debt, but continues to borrow money so that he could provide a better lifestyle for his family. On the eve of Diwali, his wife dies from a fatal snake bite. Crestfallen, Hariram takes to alcohol, loses his job and is unable to repay his loan. Directing his exasperation toward Rattan, the moneylender hits the boy which enrages Hariram and he threatens to kill him. The same night, the moneylender is murdered and the police suspect Hariram of committing the crime. When Rattan realises that his father is innocent, he goes to great lengths to prove his father's innocence and expose the real criminal.