The final truth (1955)

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.