A quiet married life is upended by a powerful, unseen force that travels through a family’s past and tests their bonds. Ravi Vijayakumar and Savitri Sridevi are happily joined in matrimony, and their peace is deepened when Savitri’s brother arrives from Singapore to join them for a vacation at Ravi’s estate. That first night, an eerie presence haunts Savitri alone: an apparition materializes for her, accompanied by a haunting tune and the soft clatter of anklets that no one else can hear. Before she can fully grasp what is happening, another spirit slips into her, pushing out her own essence.
Overnight, Savitri’s entire persona shifts. She moves with a new confidence, speaks with a different cadence, and behaves like someone who seems to have always lived on those hills. Ramesh observes with growing concern as she wanders the surrounding landscape as if she’s returning to a childhood home she never truly left. He notices tears shed over two names carved on a tree trunk—Radha and Ravi—the fading marks of a love that history could not keep safe. Following these clues, he trails Savitri to a humble cottage where she introduces herself to an elderly woman as her own dead daughter Radha. Savitri explains that her wandering spirit has hovered because of unrequited love, and she reveals a grim arrangement: in the five days before the new moon, if she can attain a physical union with Ravi even once, she will be alive again; if she fails, she will push Ravi over the very waterfall where she herself met her end, so they can reunite in the next world.
In an old, disused bungalow, Ramesh finds a photograph of a woman and a cassette tape, clues that Ravi later discloses. Ravi recounts a past romance with Radha, the daughter of a late factory supervisor. The two lovers roamed the hills and earned the blessing of Ravi’s father, yet tragedy struck when Radha vanished beneath dangerous circumstances at the hands of her cruel suitor Ranga. With this painful history laid bare, Ramesh resolves to shield Ravi from Savitri’s possession and the perilous lure of Radha’s plan.
The confrontation intensifies night by night. On the first night, Savitri appears in a provocative guise and sings a seductive melody in Ravi’s room, only to be interrupted when Ramesh drags Ravi away under the pretense of an urgent factory blaze. On the second night, he administers sedatives to Ravi’s milk to keep him out of harm’s way. The third morning finds Savitri performing with reckless abandon at a labor day gathering, a chilling display that alarms the guests. That same night, she lures Ravi to their summer cottage, but once again Ramesh intervenes by setting the place alight to destroy her scheme.
The following night, danger closes in as Ranga tries to settle old scores by waylaying Ravi; once more, Ramesh arrives in time to rescue him. Yet the cycle continues, and the struggle reaches its peak on the final night. Radha’s restless spirit makes a last, desperate bid: she puts Ramesh to sleep and draws Ravi away with a lullaby, while Savitri’s displaced voice cries out in a haunting call of “Anna!” and a faithful barking dog awakens Ramesh. He pursues the sound up the hill as Radha’s song guides them toward a fateful reckoning. In the end, the forces of good prevail, and the living are spared from the encroaching darkness.
This tale blends romance, tragedy, and supernatural menace, weaving a landscape of hills, old cottages, and the memory of lost loves. It invites viewers to consider how the past can reach into the present, how devotion can become perilous, and how courage—even in the form of a protective brother—can intervene when mystical forces threaten a family's future.
