Lalmohan Ganguly, alias Jatayu − a sidekick of Feluda − gets invited to Mumbai (previously Bombay) to watch the shooting of a film based on a novel written by him. Once in Mumbai, he, along with Feluda and Topshe gets embroiled with underworld kingpins. He seems to have transported the Nana Sahib's necklace. But fortunately because of Feluda the real thief is caught and convicted. Although the original story was written in the 1970s, the movie is set in more recent times and depict the real problem of underworld involvement in Bollywood.
