Madhukarai. A riot spreads through the village and 16 innocent villagers are brutally massacred. Appan found out that Balasingam was the brain behind the violence. His ambition to set up a Special Economic Zone was opposed by the villagers, who feared their land would be acquired. In retaliation, Balasingam wiped out the villagers to ease up the acquisition. Appan Menon arrested Balasingam and his accomplices. One evening, Kartha, Sulaiman Rauthar, Krishnan Nambiar and Kurian Varghese arrived at his home and demanded a negotiation. Appan snubbed them by refusing to accept any sort of negotiation. In a few minutes a group of thugs entered his residence and went on a rampage. Vaiga who was in the bathroom was attacked by two thugs and murdered. Following this incident, Appan develops a psycho disturbance, in which he feels the presence of Vaiga with him. After reading his diary, Susan approaches Dr. Sreenivasan Iyengar, a psychiatrist for further details. Dr. Iyengar explains about Appan's visit to him just after the incident. He had revealed to Dr. Iyengar that to get justice for Vaiga, he had killed Balasingam and was planning to kill the rest of the goons. Susan is shocked to find out that Appan himself is behind the murders of Krishnan Nambiar, Sulaiman and Kartha. Susan reaches out to Alexander Mekkadan and passes out the information. Mekkadan launches a hunt for Appan, but he successfully flees from the nets. Appan reaches out to Kurian at his guest house. Kurian explains that Koshi Abraham Koshi, a high profile NRI businessman is the master brain behind everything. Appan kills Kurian and reaches out to Koshi Abraham Koshi. He kills Koshi in the presence of the children of the 16 villagers of Madhukarai, whom Koshi had killed. The film ends by showing Appan witnessing a violent protest led by Susan Mary Thomas. Cast Suresh Gopi as Dr. Appan Menon IPS / Vishwanatha Menon IPS Vimala Raman as Vaiga Padmapriya as Susan Mary Thomas Siddique as DIG Alexander Mekkadan IPS, City Police Commissioner Vijayakumar as CI Venu Manoj K. Jayan as Durgadasan Mala Parvathi as Mary Thomas Lal as Dr. Srinivasa Iyengar Sai Kumar as Koshy Abraham Koshy T. P. Madhavan as DGP Raman Naik IPS Kollam Thulasi as Chief Minister Mohanraj as Kurian Varghese Biju Pappan as Krishnan Nambiar Jisna Ali as Gayathri Kundara Johny Music The music and background score were composed, arranged and programmed