(Certified: Jul 22, 1978)
This is a adaptation of Hitchcock's The 39 Steps. Chhaya (Neetu) and Amit Narayan (Rajesh) are in love and Chhaya wants to get married. Amit doesn't see why they have to get married and wants to keep things as they are. Wedding dates are set and then moved, to her great frustration. Amit lives alone, and is also very fond of Chhaya's family: father(Om Shivpuri), mother(Dina Pathak), little brother Raju(Raju Shrestha) and sister Maya.
It is Diwali. Amit's upstairs neighbor Raman(Vinod Mehra) looking very suspicious, takes a body out of a trunk, sprinkles it with whiskey and as another set of firecrackers explode outside, shoots the poor dead guy's face off. When Amit returns home, Raman forces his way in. He explains to Amit that he is a spy for India and is being watched by enemy agents. He has set up his own suicide to throw the enemies off his trail and needs to stay with Amit for a few days in hiding. The unnamed enemy is plotting to destroy India's valuable relationship with an African country called Mazaland (by assassinating its Chief Minister when he arrives November 19 at the Delhi International Airport. The enemy agents are not put off by the sensational news of Raman's suicide and stay put themselves. The next day Raman pries the back off his watch; hidden behind the watch face is a teeny-tiny red notebook. He opens it up and begins writing.
Raman has been murdered and Amit's living room turned upside down, he finds red notebook, hidden by Raman. Raman has written down some clues about the gang (known to him only as Z, P, R and M) and their plan to kill the Chief Minister of Mazaland. He begs Amit to stop them himself: to take the notebook with him to Delhi and hand it over to the police there. And so Amit's endless journey of swapping outfits and changing clothes begins. The police naturally assume that Amit is the culprit and put out an all-points bulletin for his arrest. Chase of Cat and mouse begins and so does the story.