Death in the mountains. An estranged son. A practitioner of the occult . Feluda and Topshe are on vacation in picturesque Gangtok when they stumble upon the mysterious murder of a business executive. There are many suspectsthe dead mans business partner Sasadhar Bose the long-haired foreigner Helmut the mysterious Dr Vaidya perhaps even the timid Mr Sarkar. Feluda unravels the knotty case with his usual aplomb and tracks the criminal down in a far-flung monastery.