Selina Joseph, Suparna Anand, a budding poet who enjoys a warm family life, is shocked by a deeply personal act on a day that feels all too ordinary: she shoots herself with her husband’s gun. The police call it a freak accident, but her husband, Mathew, Sukumaran, suspects there was a hidden motive behind her ultimate choice. Haunted by the tragedy, he sinks into depression and seeks refuge in alcohol, trying to cope with a wound that seems impossible to mend.
Balachandran Nair, Mammootty, a Delhi-based journalist and a close friend of both Selina and Mathew, takes it upon himself to uncover the truth behind Selina’s death. He believes that understanding the past might illuminate the present and, perhaps, spare Mathew further pain. He counsels Mathew to lay off the drinking and to avoid letting sorrow erode his health, gently insisting that Selina would not have wanted such a fate for him. Mathew and the household staff stand by their story that Selina appeared content and that there was no obvious or explicable motive for her suicide.
Balu, as Balachandran Nair is affectionately known, begins a careful journey into Selina’s history, tracing who she was before the tragedy. He starts with her school days, prompted by a relative who reveals a crucial secret: Selina had to leave school after suffering a serious bus accident during a school trip. Balu travels to Bengaluru to continue the search, keeping Mathew informed through letters and occasional calls as he pieces together her past.
From the school principal, he learns there was no ordinary accident at all; Selina had been dismissed when it emerged she was pregnant. The thread leads him to Selina’s former classmate, Prof. Shyamala Menon, Parvathi, who had been Selina’s best friend in their youth. Initially hesitant, Shyamala eventually shares a memory from their school days that hints at the deeper truth behind the pregnancy. Through her testimony, Balu begins to understand the sequence of events that altered Selina’s life forever.
The investigation uncovers a painful chapter: after Selina was dismissed, her father, Antony, Karamana Janardanan Nair, arranged for her to give birth away from public eyes. Selina, unaware of the circumstances surrounding her pregnancy, believed herself to be a virgin and named her son Immanuel, meaning the “son of the Holy Virgin Mary.” The child was taken to an orphanage by Antony without Selina’s knowledge. Later, Selina suffers memory loss after a car accident and forgets her child entirely, a detail that deepens the mystery of her final days.
As Balachandran digs deeper, the crucial question about the day of the suicide resurfaces: a rag picker boy is caught stealing from the yard, and Selina asks the boy for his name. When she learns the name Immanuel Antony, a shiver of recognition runs through her—and she suddenly sees that the boy is her own son. In a moment of overwhelming emotion, Selina’s instinctive revelation propels her to end her life, overwhelmed by the memory she had never fully confronted. Balachandran makes a serious decision to protect Mathew from this painful truth, choosing not to reveal what he has discovered.
In the film’s final act, a surprising love story unfolds between Shyamala and Balachandran as they grow closer while continuing to uncover the past. Their journey leads them to Immanuel, Selina’s son, and together they decide to adopt him, thereby giving Selina’s memory a chance to live on through his future. The revelation of Immanuel’s existence offers a bittersweet closure: Selina’s life, her hidden past, and the choices that shaped her final days come full circle as a family forms around the child she never got to fully know.