A jobless unambitious and lonely Suvo and a lonely teacher Mistu live in the same locality. In Suvo`s imagination, they meet and talk every day. But when she gets married to Somnath, he is hurt. Believing their meetings were true, he still waits for her in his dream and reality. In reality, she hangs herself.

When history geek, Kolke, partners up with his nerdy nephew Potai, and a quirky young girl, Jhelum, to uncover a lost treasure hidden in the underground tunnels of Kolkata, their expedition culminates in a gripping showdown beneath the city's surface