A murder in an elevator. A trail of heady perfume. The Nanasaheb's priceless Naulakha necklace - Feluda, Topshe and Jatayu are in Bombay where Jatayu's latest book is being filmed under the title Jet Bahadur. Soon after Jatayu hands over a package to a man in a red shirt, a man is murdered in the elevator of the high-rise where the producer of the film lives. Feluda and his companions find themselves in the midst of one of their most thrilling adventures ever, with a hair-raising climax aboard a train during location shooting.