As Byomkesh Bakshi tries to solve a murder mystery, a myth of a buried treasure at the fort surfaces following a bizarre series of deaths. How does BB demystify the case? Adaptation of the adventure detective novel written in 1952 by Sharadindu Bandyopadhyay.
One day Abhimanyu was found dead in his bedroom and Tithi was found senseless in the drawing room. Is this an open and shut case for DCP Anish Roy or will he go into the depth of the mystery?
Uma, wanting to flee an unwanted marriage, discovers a graphic novel that Surjo once occupied. Intrigued by the unfinished story of Surjo's adventures and starts tracing his step. Will Uma be able to accept the person when she meet? Is Surjo the same person as she heard from the stories about him?
Two insurance agents stumble upon several mysterious cases of people with life insurance policies from their company dying accidental deaths. The duo starts an investigation to find the truth, but they are clueless about the menacing mastermind behind the whole thing.