Detectives Mriganko and Shubho fail to appropriately investigate the serial killings of a few children. Meanwhile, the prime suspects in the case, Jatileshwar and Nabadwip, are proven to be innocent.

Jatileshwar continues with his evil deeds under the garb of an innocent man. A frustrated Mriganko reopens the case. Subho joins Mriganko as they plan to solve the case successfully.

Mringanko and Subho get very close to catching hold of Nabadwip, but he manages to escape. A scared Jatileshwar prepares his defense. Mriganko and Subho manage to enter Jatileshwar's house in his absence to find a clue to solve the case

Mriganko and Subho stage yet another trap for Jatileshwar. But he executes his mastermind plan against them. Will Subho and Mriganko be able to catch Jatileshwar red-handed?