The story revolves around a sequential incidents of serial-psycho killings of married women of high class societies, suffering from the obsession of lust and sexual perversion. The case comes to limelight when Noyonika Choudhury, elder daughter-in-law of Minister Sayan Choudhury was brutally murdered. Forensic and postmortem reports revealed her sexual involvement with the culprit prior to murder. The case was then taken over by the Senior Officer (played by Debesh Roy Choudhury) of Special Branch of Kolkata Police assisted by his group of three allies- Sanjib (Monojit), Zinia (Sutanuka) and Sharmi (Anusuya). The officials remained perplexed about the motive only to discover the sequential gap of two days between each murder and the names of all the victims starting with the initial “N”. Finally, after a long round of hide and seek game of crime and love-birds (Sanjib and Zinia), the culprit, Bickramjit Sinha Roy (Arindam) gets trapped and confesses the infidelity of his beloved wife Nibedita as the motive behind such brutality.