Romantic Rascal

Nayak Singhvi, a cloth merchant of Hyderabad marries Kasturi Naidu. Kasturi has a similar looking sister named Shipra, who is suffering from an incurable disease. Nayak buys an insurance of rupees fifty crore in the name of his wife but waits for Shipra's death. When she dies, Nayak shows Shipra as his wife (Kasturi), and with the help of doctor Rami Mudaliar, he gets the insurance money. 

When Kasturi demands half of the money, Nayak tells her to not disclose the matter and advises her to start a business with him in Dubai. They go to Dubai and stay at doctor Rami's bungalow. Now Nayak persuades Rami to kill Kasturi and get half of the money. When Kasturi figures out the trap, she offers half of the money and "herself" to Rami for killing Nayak. But doctor Rami has his own third plan. 

Rami wants to kill both and take all the money! 

Rami plans to kill Kasturi first by giving her a bite of potassium cyanide wrapped in a chewing-gum already in his mouth. But during lovemaking with her, in trickery, he himself falls prey and dies naked on Kasturi's nude body. In next second, she senses his body lifeless but his erection still inside her vagina. Kasturi runs away with the gums and plans to kill Nayak for her survival. The fight between them turns lethal and the cyanide goes into her stomach. But Kasturi defeats death by her swift skill, and ultimately, she wins the battle by killing her romantic rascal husband Nayak Singhvi.