Three deadly crime bosses, namely Nanjunda [Prabhakar], Vamsi, and Maaran, hold sway over different areas of Chennai: Maaran dominates North Chennai, Nanjunda rules South Chennai, and Vamsi commands Central Chennai. These men rose to power through violence and fear, committing murders and smuggling goods to expand their empires. Nanjunda extends his reach by smuggling spirits into the country and killing a local councillor, a move that lets his henchmen burn the bodies of his victims to erase evidence. Vamsi accrues wealth through a bustling betting business after killing his jewellery shop boss and the boss’s wife, seizing control of the underworld economy. Maaran, meanwhile, uses harbour smuggling and political leverage, employing women to coerce harbour officers and striking without hesitation when a threatening officer gathers evidence against him.
In the wake of these power plays, a chilling chain of events unfolds. Nanjunda’s men kidnap Sithara, who is linked to Vamsi, and she endures a brutal assault aboard his orders. To tighten his grip on Chennai, Nanjunda’s lawyer plots to recruit a former gangster now living a more restrained life as [Right] Subramaniam, played by [Sundar C], who runs a real estate business alongside Malik Bhai. After a dramatic confrontation, Right’s no-nonsense approach surfaces when he beats up Nanjunda’s men in a mere 17 seconds during the kidnapping of his dog, a moment that signals his reformation from daylight murder to a business-minded enforcer.
As the legal system takes shape, [Right] quietly uncovers a deeper conspiracy: Meiyappan, Maaran’s right-hand man, is behind a counterfeit notes operation tied to CIBCID. Right’s indirect warning to Meiyappan sets off a dangerous cat-and-mouse game, culminating in a staged confrontation where Meiyappan’s goons are bested and Meiyappan himself is wounded, a move that sends Maaran scrambling while Meiyappan relays the warning to Maaran through his phone.
The investigation heats up as CIBCID arrests Meiyappan on the counterfeit case and Malik Bhai is released after the raid. Soon after, Right’s and Malik Bhai’s paths cross with Vamsi’s gang; Malik Bhai suffers a brutal arm slash, and Right decides to alert Vamsi to looming trouble. Sithara, moved by Right’s righteousness, grows fond of him, and she seeks him out to share what happened, while Malik Bhai begins to recover from his injuries. Sithara’s visit draws Vamsi’s attention, who realizes Right sits at the heart of the conflict.
Nanjunda grows increasingly desperate and orders an end to Right after Right’s beating of his men. Parveen is abducted by Nanjunda’s gang, and they force her to reveal Right’s hideout. Right is trapped, and Nanjunda stabs him seventeen times, leaving him on ventilator support. Yet Right fights back and begins the road to recovery with Sithara’s support.
Maaran and his faction then decide to confront the Public Prosecutor with the intent to kill Right, upset by Right’s interference in Maaran’s affairs. In a deft move, the Public Prosecutor and Meiyappan orchestrate Maaran’s downfall under Vamsi’s orders, and Meiyappan informs Vamsi of Maaran’s death. In a calculated revenge, Vamsi frames Sithara for prostitution, forcing her to bring Right to him to protect her reputation and career. Right, unmoved by fear, eliminates Vamsi’s men and abducts Vamsi onto a boat, where Right’s goons brutally mutilate him and dispose of his body in the sea.
With Vamsi out of the picture, Right’s forces strike again, targeting Nanjunda’s six boys in a secluded forest. Sithara arrives, recognizing the attackers as the goons who abused her, and Right’s men bury the six boys, delivering harsh justice.
The tide of vengeance drives Nanjunda to escalate his bid to kill Right. Sithara escorts Right to her private farmhouse, where Malik Bhai warns that Parveen will be picked up and brought to Right. When Parveen arrives, the men discover Malik Bhai is missing—his sandals, watch, and ashes left behind as a grim clue. Right then confronts Nanjunda at his house, seizes a sword from behind his chair, and delivers a brutal beheading, sending Nanjunda’s remaining goons into panic and solidifying Right’s hard-won supremacy over Chennai’s underworld.