In the 1990s, Adv. John Williams moves to a house by the sea in Thuruthikkadavu with his wife Daisy and their three children, driven by personal reasons. Soon after settling in, mysterious letters addressed to a man named Freddy begin arriving from an unknown address, and John starts noticing strange, unsettling occurrences that nag at the quiet rhythm of their new life. When he shares his concerns with his friend Amir, the reply is urgent and stark: vacate the house at once and go to the owner, Thomas, to recover the rent that was paid in advance. The warning carries weight, but the mystery deepens.
A conversation with Thomas’s servant reveals a chilling detail: the house stands on land that was once used as a graveyard. With this revelation weighing on them, John, Daisy, and the children retreat to Amir’s home for safety, only to receive another letter that spurs John to learn who Freddy really is. One night, after they return, the children are frightened by an unseen force, and the youngest, Tittu, falls ill with a fever. At Daisy’s insistence, John seeks out Fr. Geo Kuttikkadan, asking him to visit their home to pray for Tittu’s recovery.
A doctor later informs Fr. Geo that Tittu’s symptoms echo cholera, advising against visiting the house. Yet Fr. Geo’s investigations lead him to a clue about Freddy—an old betrothal invitation from 1971 that names Freddy as the groom for a girl named Margaret. He and John track Margaret down; she is now a doctor and reveals that Freddy never married her and that she is married to another doctor named Rajeev. With the help of Peter, a parish clerk, John and Amir meet Fr. Francis, who has just returned from Rome after a grave illness diagnosed as blood cancer. When John shows Fr. Francis one of the letters, the elder priest recognizes it as belonging to Anna Rose George and begins to recount her and Freddy’s intertwined past.
The film’s backstory unfolds in the 1970s: Freddy is a PhD student, the son of a wealthy man named Mathew, who falls in love with Anna Rose George, an orphan raised in a priory in Kochi. Anna uses her savings to start a homestay in Thuruthikkadavu, while Freddy’s family pressures him toward a proposal with Margaret, an MBBS student. Anna loses her place at the priory after the authorities learn of her relationship with Freddy, and Freddy moves in with Anna. Following his father’s counsel, he travels to Madras to submit his dissertation and defend his viva. When Margaret arrives in Madras for her own post-graduate studies, Freddy’s affections shift, and a new relationship begins to bloom with Margaret.
Meanwhile, a cholera outbreak plagues Thuruthikkadavu. Anna contracts the disease while hosting a guest and dies, prompting Fr. Francis to bury her near Anna’s homestay rather than in the village’s common graveyard. The next morning, Fr. Francis digs up the grave and discovers scratches on the coffin; it becomes clear that Anna was not truly dead, and that she died only because the rain-soaked mud flooded the coffin, effectively drowning her.
With Fr. Francis’s guidance, John and Amir reach Freddy’s house and hand over Anna’s letters to Freddy’s mother. After John returns home, a strange transformation occurs: Anna’s soul temporarily enters the body of Mariya, John’s elder daughter, prompting the child to question Freddy about his past. Freddy arrives, and the possession ends as Anna’s spirit withdraws from Mariya. In the end, John and his family relocate to a new house, while Freddy remains behind, clinging to the hope that Anna will someday forgive him and speak to him again. The tale lingers with a quiet, supernatural note as the mystery of the letters, the past, and a doomed romance slowly resolves.
