An amnesiac man escapes the hospital he has been admitted to and is aided by doctor Roma Banerjee, who takes him to her father's country house. While treating him she falls for him and he for her. They marry, but an accident makes him remember his life as a rich man in Calcutta and completely forget the time spent with Roma. Roma follows him to Calcutta.
A poor guy named Dhiman (Uttam Kumar) found a shelter in a rich man house but eventually fell in love with his daughter, Anjana (Suchitra Sen). Despite trying to make a name for himself by painting and sculpting, Dhiman and Anjana went through all kinds of turmoil to be together.
Shankar was a young lawyer in pursuit of making it big in the professional world. However, his world is turned upside down when he comes to know that his father, who he knew went missing, was in real life spending his lifetime in jail as he was incorrectly accused of murdering a lady named Hemangini. His mother urges him to reinvestigate the case and save his father. He goes to Krishnanagar in search of the people and the pieces of evidence that would help him to prove his father’s innocence. He meets Rita, a young and charming lady who assists him. They fall in love. Shankar faces a lot of roadblocks while trying to collect clues, most of them which were imposed by the actual murderer. However, he solves the mystery in the end and his father is thus released from prison.
This movie revolves around an extramarital affair between a young, hot widow, Binodini, and Mahendra. Mahendra's beautiful wife Ashalata is a good friend of Binodini. For her feelings of love and affection, Binodini comes to stay with Mahendra's family. Behari, Mahendra's best childhood friend also gets mentally involves with Binodini.