Vijay is an IT professional who leads a quiet, conscientious life, living with his mother Sithara and his younger sister Abi Nakshatra. He adheres to a vegetarian lifestyle and follows Vallalar’s ideals, aiming to avoid harming living beings. Their routine is disrupted when a masked man intrudes into their life, kidnapping Vijay’s mother and sister and issuing a chilling ultimatum over the phone: carry out a dangerous mission or face a tragic consequence. The case falls under the gaze of the investigative team led by ACP Yazhvendan, who begins combing through the clues, chasing down leads and trying to piece together the masked intruder’s motive.
The masked caller forces Vijay to enter the house of a notorious local don named Kaali and confront him alone. At first, Vijay wrestles with fear and hesitation, torn between protecting his family and obeying a deadly command. But the threat to his mother and sister’s lives tips the balance, and he agrees to comply. In a gripping, single-handed duel, Vijay defeats Kaali, an act that seems to satisfy the masked man’s demands for the moment. Yet the danger is far from over. The kidnapper escalates his plan by seizing Dr. Karunakaran’s son, adding a personal and moral dimension to the crisis that grips the city.
As Vijay and Dr. Karunakaran (the dean of a government hospital) confront the new crisis, the masked man reappears on the screen, pulling the strings from behind the scenes. He reveals unsettling information about Dr. Karunakaran and a larger conspiracy, drawing Vijay deeper into a web of intrigue that stretches back to the darkest moments of the pandemic. The online disclosures set the stage for a truth that is hard to accept and even harder to confront: the masked man’s agenda is tied to a disturbing chapter from the COVID-19 lockdown.
The film unspools a disturbing backstory. During the height of the pandemic, oxygen cylinders became scarce, creating life-and-death pressure on hospitals and their patients. Dr. Karunakaran is accused of abusing his position by illegally selling oxygen cylinders from government facilities to private hospitals. In the course of the investigation, Dr. Anitha—who worked at Karunakaran’s hospital and had begun to expose the malpractices—meets a violent end when Kaali and his henchmen assault her. This act is not just a crime but a spark that ignites Vijay’s lethal resolve, as the masked man pushes him toward a brutal choice: to beat Karunakaran into submission in order to secure his mother and sister’s release.
Against this grim backdrop, Vijay’s confrontation with Karunakaran culminates in a deadly encounter. The immediate threat to the family is resolved when Karunakaran is killed, and the masked man finally frees Vijay’s mother and sister. The immediate danger subsides, but the mystery of the masked man remains, tugging at the threads of guilt and vengeance that surround the family. ACP Yazhvendan moves quickly to locate the mastermind, but by the time his men close in, the masked figure has already disappeared into the night. Vijay is eventually acquitted, his actions ruled as a necessary response to save his loved ones, a verdict that mirrors the moral ambiguity at the heart of the story.
In a pivotal turn of revelation, ACP Yazhvendan discloses that the masked man’s identity is known to be none other than Vijay himself. The film shifts into a reflective flashback, peeling back the layers of motive and history that culminate in this startling twist. The narrative reveals that Vijay’s neighbor, Dr. Anitha, and Vijay’s father played a central role in a sequence of events that pushed the family toward vigilantism. When Vijay’s father contracted COVID-19, he was admitted to hospital, and in a moment of desperation, he sacrificed his own oxygen supply to save a pregnant woman—an act that cost him his life. This tragedy seeded a long-gestating plan in Vijay and his family: to expose Dr. Karunakaran and to exact a fatal vengeance on him, all while hiding behind a carefully constructed facade of retribution. ACP Yazhvendan’s understanding of Vijay’s true motivations matters here; he chooses not to disclose the darker truth to the world, letting the family wrestle with their own conscience.
What unfolds is a layered exploration of duty, responsibility, and the price of taking justice into one’s own hands. The film balances high-stakes action with a quiet meditation on how personal loss and systemic failings can collide to drive a person to extremes. While Vijay’s actions are born of necessity—and ultimately reveal a profound internal conflict—the story challenges viewers to consider where justice ends and revenge begins. Throughout, the tension remains anchored by a tight sequence of confrontations, with the investigation moving between the hospital corridors, the digital fringes of the masked antagonist’s online reach, and the intimate spaces of Vijay’s family home.
In the end, the narrative turns on a moral pivot: the truth behind the masked man’s identity is a mirror held up to Vijay’s own choices, and the consequences those choices have for everyone around him. The story stays relentless in its pace, yet it never loses sight of the human cost behind each decision. The aftermath leaves Vijay facing the consequences of his actions, the weight of his family’s safety resting on his shoulders, and the lingering question of how far someone should go when the system seems unable to protect the vulnerable. The film closes with a somber note about memory, guilt, and the thorny path toward reconciliation in the wake of violence.
