Suspenseful and scintillating, this investigative thriller follows ace detective, Byomkesh Bakshi and Ajit, who have been approched by Mr.Bagchi(Arindam sil) to investigate the whereabouts of arms, left by the U.S. soldiers after the 2nd world war.
The case leads them to the Dooars and while clues are hard to come by, they get rocked by the murder of a young man, Amrito followed by the explosion of Sadananda Sur's house, killing him in the process. What follows are shocking truths of Sadananda, which is connected with the arms smuggling that breaks the case wide open and sets in motion a complex sequence of events, leading to a thrilling finish. Will the detectives succeed in exposing the truth?