Set in the tumultuous Naxalite uprising in Bengal in 1971, Byomkesh Bakshi gets involved in a story of vengeance when he decides to attend a play at the theatre and becomes witness to a crime unfolding on the center stage. As Byomkesh digs deep into the case, it opens him to a tripartite story of love, betrayal, and infidelity. And how the mystery is laid bare for Byomkesh to solve.

A detective is hired to find the arms left by the American soldiers after World War II. However, his search makes him discover a bigger conspiracy which he must anyhow solve.

Famed detective Byomkesh Bakshi investigates the murder of a man who had just thrown a party to celebrate his recovery from a long illness.

Convinced that his life is in jeopardy, Satyakam, the son of a business magnate hailing from Mussoorie, approaches Byomkesh with a plea for help. The legendary detective soon heads to Mussoorie, where he finds out that the youngsters worst fears have come true. Can Byomkesh unravel the mystery shrouding Satyakam's murder before it is too late?