Vidivelli

Chandru (Sivaji Ganesan) has a sister (Rajam) who is married to a Ravi (Balaji) But her in-laws insist on a diamond necklace, without which she cannot join her husband. He and his mother move to Madras where he finds a job in a company owned by a wealthy man. One day, the necklace falls down and the locket opens, revealing a photograph of a young man.