The story revolves around a covert mission to bring down a massive drug syndicate led by the ruthless Sandhanam (Vijay Sethupathi). At the center of this mission is Karnan (Kamal Haasan), a retired special forces officer who leads a secret double life. Karnan appears to be an ordinary citizen, but beneath his calm exterior lies a fierce warrior determined to dismantle the drug empire.

The film opens with a series of mysterious killings, with masked men targeting high-ranking officials involved in drug smuggling. To solve these murders, a special team led by Amar (Fahadh Faasil) is tasked with investigating the case. As Amar digs deeper, he uncovers Karnan’s involvement and realizes that the veteran is leading a vigilante-style operation against the powerful drug cartel.

The narrative intertwines multiple layers of deception, as Karnan manipulates events behind the scenes, using his network of skilled operatives to strike at the heart of the syndicate. The movie is filled with stylish action scenes, including brutal hand-to-hand combat, gunfights, and elaborate chase sequences. Karnan’s character is portrayed with a mix of stoic intensity and underlying compassion for the cause he fights for.

Vijay Sethupathi’s portrayal of the villain Sandhanam adds another dynamic to the story, with his unpredictable and menacing performance as a drug lord who will stop at nothing to maintain his grip on the underworld. Fahadh Faasil as Amar adds layers of intrigue, as his character evolves from an investigator to someone who understands the moral complexity of Karnan’s mission.

One of the highlights of Vikram is its intricate plot, which keeps the audience guessing until the very end. The action set-pieces are meticulously choreographed, blending realistic combat with cinematic flair. The film’s pacing keeps the tension high throughout, culminating in a thrilling climax where Karnan faces off against his enemies in a final showdown.