The story is about Arjun (Uttam Kumar), a very lonely person and doesn't know what life is. Every day for him is a struggle. So he becomes a petty criminal. Jail is a safe custody for him because food is always available there. So he tries to return to it, but all his efforts go in vain. On a trip, he meets a Catholic Father (Tarun Kumar), who is the principal of a missionary residential school. There, Arjun meets Miss Chaterjee (Sabitri Chatterjee) who is a teacher . At first she doesn't like him, but shortly she starts to realize Arjun's goodness.