Apu Roy (Soumitra Chatterjee), now a young unemployed man, lives in poverty and attempts to be a writer. When his old school friend Pulu (Swapan Mukherjee) convinces him to go on a trip to a family wedding, surprising circumstances end in Apu marrying the bride, Aparna (Sharmila Tagore). Set on being a responsible husband, Apu finds a job and becomes close to his wife, but tragedy strikes, leaving him at yet another crossroads.

Impoverished priest Harihar Ray (Kanu Bannerjee), dreaming of a better life for himself and his family, leaves his rural Bengal village in search of work. Alone, his wife, Sarbojaya (Karuna Bannerjee), looks after her rebellious daughter, Durga (Uma Das Gupta), and her young son, Apu (Subir Bannerjee), as well as Harihar's elderly aunt Indir (Chunibala Devi). The children enjoy the small pleasures of their difficult life, while their parents suffer...