Faced with the prospect of a dim future in his impoverished village, young Shankar bids farewell to his family in rural Bengal and makes a journey to the fabled "Mountain Of The Moon" in search of gold and diamond mines.
A prince grants his father's dying wish and secures his inheritance by marrying. The palace librarian who was befriended by the new bride goes missing, and the prince invites Byomkesh Bakshi to uncover the truth behind his disappearance.
