Madhavan and Gopalan, are brothers-in-law and partners-in-crime. Both are alcoholic and trouble makers in their village. Madhavan has a long standing rivalry with Louis, a businessman, over a property dispute.

Shwethaa and three of her friends, who are para psychology students, go to an old, haunted bungalow to shoot for their project report about the existence of evil spirits. Shwethaa…