Gehri Chaal (1973)

This suspenseful thriller sparks off at a critical juncture, when Dharamchand, the Chair of Olympic Bank, is stressed and tense as the bank is due for a final audit by the 30th of the month. Shortly thereafter, his daughter, Hema, finds his dead body in the bank, apparently having committed suicide as he was unable to pay back some debts.

His son, Ratan who is called for rescue by Hema, decides to protect the good name of the family and does not tell anyone about the suicide note to anyone, including Hema. Shortly thereafter, Ratan is approached by a blackmailer named Shekhar, who threatens to expose Ratan's secret if Ratan does not participate in a bank robbery that will take place two days before the final audit.

Ratan assists him, the robbery takes place, the money is looted, all bank records are burnt, and the robbers make a successful getaway. Ratan is relieved that his problem has been resolved and the family name is not tarnished. The only problem is that Hema saw the robbers in action, and is able to identify one of them, a woman named Shobha.

When she tells Ratan, he asks her to keep this information a secret. Then Ratan's friend, Roger, arrives from Delhi for a visit, and it is here that Ratan will find out that Roger is in a profession that has made him a suspect with the police, and may rip open the secret that Ratan has been trying to hide from the world.