| Director | Karthik Subbaraj, Laila Pakalnina |
|---|---|
| Genre | horror film |
| Runtime | 127 min |
| Country | India |
| Budget | ₹1.5 crore |
| Box office | ₹8 crore |
Michael Karthikeyan, a pizza delivery driver, lives in Chennai with his girlfriend Anu, an aspiring novelist. Although sceptical of the supernatural, Michael is deeply frightened by anything paranormal. Anu insists he will one day encounter the supernatural himself. The couple later marry after Anu becomes pregnant.
Michael's first disturbing experience occurs when he sees his boss Shanmugam's daughter behaving violently while seemingly possessed, repeatedly screaming the name "Nithya". The incident leaves him shaken.
One evening, Michael returns from a delivery covered in blood, muttering Anu's name and attacking his friends and co-workers. Pressured by Shanmugam, he recounts what happened.
Michael explains that he travelled to deliver pizza to a luxurious bungalow in Anna Nagar. A woman named Smitha lets him inside before going upstairs to fetch money. Suddenly, the power fails and she vanishes. While searching the house, Michael discovers Smitha's corpse nailed to a wall. Terrified, he tries to escape, only to find the door locked and the body mysteriously moved. Missing pizza slices and scattered crumbs suggest an unseen presence.
Michael later encounters Smitha's husband Bobby, communicating with him through Smitha's phone, only to discover Bobby is also dead inside the house. Reality becomes increasingly distorted as Michael somehow speaks to the deceased Smitha through Bobby's phone. Attempts to contact Anu fail, yet she unexpectedly calls Smitha's landline. Even calls to the police and from Shanmugam inexplicably connect to the same phone, leaving Michael trapped and helpless.
Upstairs, Michael encounters the ghost of a young girl named Nithya, resembling Shanmugam's possessed daughter. Fleeing downstairs, he suddenly finds the house brightly lit and covered in police tape. Two policemen inform him that, a week earlier, Bobby murdered his wife Smitha and their daughters, Nithya and Anu, before the bungalow became infamous as the "Smitha Bungalow". Shocked by the mention of Anu, Michael notices similarities to his own wife. He escapes as the policemen are dragged back into the house by an unseen force. Outside, the bungalow appears abandoned and derelict.
Michael returns home to discover Anu seemingly erased from existence. Distressed and traumatised, he attacks his friends before collapsing in tears. His co-workers sympathise with him, help file a missing persons report, and support him as his mental state deteriorates.
Later, during another delivery, Michael secretly changes his phone's SIM card and calls Anu, revealed to be alive. It is then revealed that the haunting story was fabricated. Before the delivery, Shanmugam had hidden illegal diamonds inside a candy box to avoid a police raid and unknowingly sent them away with Michael. After discovering the diamonds, Michael and Anu devised a plan based on the plot of Anu's horror novel. Since none of Michael's friends had ever met Anu, she disappeared with the diamonds while Michael pretended to be traumatised to avoid suspicion.
Michael goes to deliver pizza to a house, but experiences events identical to those in his fabricated story, including meeting a girl identical to "Nithya". Locked inside the house as the lights go out, Michael is left facing the possibility that the supernatural may have been real after all.