Journalist Amar falls for a mysterious woman on an assignment, but she does not reciprocate his feelings. However, when Amar is about to get married, the woman shows up at his doorstep asking for help.
After being hit by an iron rod, Sanjay Ramaswamy, a business tycoon, suffers from anterograde amnesia. He is unable to remember anything beyond fifteen minutes. Under such circumstances, he sets out on a quest to find the people who were responsible for his lover Kalpana's murder.
A young couple, Ganga and Nakulan, arrives at the ancestral home called Madampalli of the latter. Hailing from a family that follows tradition and superstitions, Nakulan's uncle Thampi objects to the couple's idea of moving into the allegedly haunted mansion, which Nakulan ignores. The couple moves in anyway following which seemingly supernatural events begin to happen.
