Feluda, Topshe, and Lalmohan Ganguly travel to Kathmandu to investigate a murder and the theft of a Krishna statue. During their investigation, Feluda uncovers hidden secrets related to the magician's family, encounters Maganlal Meghraj, a familiar antagonist, and finds himself in a web of smuggling and complex criminal activities. The plot involves a missing boy, a dangerous gang, and the eventual confrontation with Meghraj, who is revealed to be the mastermind.