The Locked Room Mystery

Life at the mess-house takes a macabre turn when Ashwini-babu is found dead in his room, his throat slit and a blood-stained razor in his hand. Inspector Vidhubabu dismisses it as a "shut and open" suicide because the door was locked from the inside, but Byomkesh declares it cold-blooded murder. He notices oddities: Ashwini was a drunkard but the cut was surgically precise, and his shoes were caked in fresh mud. Byomkesh tracks the mud to a secret Chinese gambling den where Ashwini had been losing heavily. Dragging a terrified Ajit along in fake beards and mustaches, Byomkesh enters the den to find the missing link to the drug trade. Their cover is blown when Ajit’s mustache falls off, sparking a violent confrontation with the syndicate’s goons.