| Director | R. Ajay Gnanamuthu |
|---|---|
| Genre | horror film |
| Country | India |
| Budget | ₹2 crore |
| Box office | ₹17 crore |
Raghavan, Sajith, Vimal, and Srinivasan "Srini" are four friends who share an apartment room in Chennai. One rainy night, after heavily drinking, they decide to visit a dilapidated mansion in Demonte Colony, rumoured to be haunted. They sneak into the mansion and get separated in the darkness, having a chilling experience. Despite this, all of them manage to come out seemingly unscathed.
The next day, the four friends go to an astrologer. Two of them get their thumbprints and future predictions done, whereas Sajith is told the astrologer will predict his future later, as he does not have the corresponding paraphernalia. They return home, and everything seems normal. Sajith goes to bed, but while Srini is driving his bike, he gets a phone call from the astrologer, who wants to discuss an important matter. However, Srini is unable to hear the details, and the call gets dropped. When Srini reaches the astrologer's residence, he finds him dead.
Some time later, the friends are curious to know the story behind Demonte Colony. Raghavan, who has been researching the subject for a potential film, narrates the story: years ago, the area was a colony of the Portuguese business tycoon John Demonte. He wishes to gift his wife a special necklace, but she becomes mentally ill. Demonte, depressed, travels to Calcutta to sell his properties in India before returning to Portugal.
Upon his return, Demonte discovers that someone in the mansion raped his wife, leaving her pregnant. Enraged, he kills all his servants due to doubts over who raped his wife. The locals, angered by his actions, set fire to the mansion, resulting in an explosion that kills everyone, including Demonte. A curse is said to be set on the diamond necklace, ensuring that whoever tries to steal it will be killed, and the necklace will return to Demonte Colony.
Raghavan reveals that he had stolen the necklace to sell it for money. Eerie things begin to happen in their room – the TV does not switch off, playing their own conversations instead of the DVD they had inserted. The power goes off, and Srini contacts the electricity board for help. Srini adds what happened to the astrologer, playing the call recording in which the astrologer reveals that Sajith has already died the previous night. They all turn towards Sajith, who is still sleeping.
The windows and doors do not open; the friends' cries for help go unheard outside. They use a Ouija, asking dreadful questions, and realise that none of them will return alive. Srini asks to burn the ouija, and it starts burning. "Sajith" awakens, acts oblivious to the events, and goes back to sleep. They get scared upon seeing him. Srini tells them to go back and sit at the same place where they used the ouija. They realise the arrow points at Raghavan, and Srini and Vimal could not hear what Raghavan is saying. They realise he is haunted by the spirit.
Raghavan writes on the TV that Demonte is going to kill them all and dies in the same way Vimal died in the TV. Srini tells Vimal they do not know much about Demonte's mansion and they will return alive. He reveals that if the same thing shown on TV happens now, he managed to escape before by opening the main door. Srini gets haunted by the spirit, kills Vimal, and feels sorry for it. His room starts to freeze.
When Srini sees a portion of the room where a god was present and did not freeze, he goes there and remembers the DVD. After crossing some point, Raghavan was haunted by the spirit. Srini discovers a window can be opened in that part of the room. "Sajith" tries to stop Srini from escaping, but he remembers what the astrologer said – Sajith died last night. He steps back, escapes, and runs to a nearby tea shop, only to find that no one can hear him. He realises he has become a ghost after dying while attempting to jump out of the room. Later, he witnesses "Sajith" wearing the necklace and returning to the Demonte Colony mansion.