Set in the holy city of Benares, this is the second film about the detective Feluda, in which he goes for a holiday along with his cousin, Topshe and his friend, Lalmohan Ganguly. But the theft of a priceless deity of Lord Ganesh (the Elephant God) from a local household forces him to investigate.
Goopy Gyne and Bagha Byne are banished from their respective villages for being bad musicians. However, with their skills, they succeed in pleasing the king of ghosts who grants them three boons. How will they succeed in preventing the war between Halla and Shundi which is looming large?