| Director | Venkat Mohan |
|---|---|
| Genre | action film |
| Country | India |
Having believed a police officer's life to be luxurious, with much income in the form of bribes, Karnan, an orphan, grows up to become a corrupt and ruthless Sub-Inspector. He forms an immediate friendship with the local don ECR Kaalirajan by releasing his four brothers, Kumar, Prakash, Vinay, and Sabari, from lock-up, who were all arrested for smuggling. Karnan's attitude does not go well with one of his subordinates, Abdul Kader, a sincere police constable. In vain as it is, he tries to oppose Karnan's deeds.
Meanwhile, Karnan meets and falls in love with Sindhu, who gets kidnapped by Kaalirajan's men on her birthday, but Karnan rescues her. Kaalirajan then scolds his henchmen for kidnapping the wrong person and apologises to them. As her birthday gift, Sindhu requests that Karnan save the girl that Kaalirajan was supposed to kidnap and kill. A reluctant Karnan fights Kaalirajan's goons and saves the girl, Sandhya. Karnan somehow reconciles with Kaalirajan later and learns that Sandhya has evidence against Kaalirajan's brothers. Karnan meets her and discovers that Kaalirajan's four brothers kidnapped, raped, and murdered her sister Bhavani, along with recorded footage of the crime. A camera stored the video, which is with Sandhya now. Karnan takes the camera and arranges to send Sandhya and her mother to the United States.
Before their departure, Sandhya's conversation with Karnan leaves him shattered. Discovering that he was indeed responsible for the rape since he allowed the brothers to escape on the day they kidnapped Bhavani, Karnan is devastated and soon reforms after he fights off Kaalirajan's goons sent to retrieve the camera at the police station, with Kader notifying the change in him. He soon manages to track the brothers and beat them all up before arresting them. After the police discover Bhavani's corpse and perform the autopsy, Karnan produces the camera as evidence, which turns out to be empty. Though no further evidence exists, Karnan asks for a gap of one day to provide the necessary evidence so that Kaalirajan's brothers do not escape as exonerated. Later, Kaalirajan's men attack a drunk Karnan when he is alone. After a brutal fight, they bury him alive, but he manages to escape.
Karnan reaches the court the next day, and to everyone's shock, he adds that he is not one of the four but "five" men who sexually assaulted Bhavani. He then convinces the judge to sentence all five men to capital punishment to ensure that Kaalirajan's brothers do not escape punishment. This statement shakes the entire course of the case, and the public resents Karnan. He is allowed by the commissioner to watch as the police hang all four of the brothers, after which the police hang him too. Merely hours later, Sandhya and her mother arrive in Chennai, publicly revealing Karnan's innocence and his sacrifice to ensure punishment for all accused criminals. The revelation shocks the nation, and the public, who misunderstood him, eventually mourns his death as his corpse is brought to and walked from the gallows. The film ends with Karnan's final words: "All men will now fear an immediate death sentence if they ever molest a girl".