Chikku Pandi Vijay Ram is raised apart from his family by a father who wants to shield him from the region’s violent criminal ways and nurture a quiet, scholarly life with the long-term dream of becoming a doctor. As he grows, that plan is put to the test when his father is murdered by Sathyan. Chikku reunites with his older brothers, Periya Pandi and Ila Pandi, who push him to avenge their father by killing Sathyan, setting the stage for a difficult, methodical confrontation.
The three brothers travel to Sathyan’s rubber plantation in Kanjirappally, Kerala, expecting a brutal clash that will require them to strike down many workers to reach the man behind their pain. To their surprise, the plantation is deserted, and the household is eerily quiet until Johan Kariya Hakkim Shajahan returns home, a notorious psychopath whose presence unsettles everyone around. The siblings overhear Johan taunting his father, revealing that he killed his father’s mistress and burned their son alive, a chilling confession that underscores the depth of Johan’s cruelty and the delicate balance the brothers must strike to secure vengeance.
Ila Pandi wants to abort the mission, but Periya Pandi insists they press on to honor their father’s memory. They sneak into the house, tie up Sathyan, and move him toward the nearby forest. Ila acts as the lookout, but Johan catches him, forcing Periya Pandi to improvise and misdirect Johan by claiming they had merely stumbled upon the house. Chikku distracts Johan by smashing a picture, a small act that helps the trio slip away into the forest. After they manage to kill Sathyan, the brothers hitch a ride on a passing lorry driven by a Tamilian named Gabriel, who is transporting coffins for a funeral procession. A coffin opens, revealing Gabriel’s son Andrew, who had been sleeping inside; the sight shakes Ila and Periya, who lose their balance and fall to their deaths, leaving Chikku to confront a grim turn of events alone.
As police arrive at the scene, Gabriel, Andrew, and Chikku are taken into custody. Instead of heading to the station, the officers drive toward Johan’s house, while Johan, having learned of his father’s death, closes in with his henchmen. The trio escapes into the dense forest, turning the pursuit into a tense cat-and-mouse chase. Johan is determined to burn down the forest to smoke them out, and he taunts Chikku for seeming too weak to be a worthy prey.
Andrew briefly appears to have escaped but is recaptured and burned alive by Johan, who makes Gabriel watch the brutal act. Gripped by fear, Chikku realizes he has no option but to fight back. He taps into a reserve of courage, felling two of Johan’s henchmen before coming face to face with Johan himself. Johan laughs and offers to tell a joke, but his moment is cut short when a lorry streaks in—driven by Vijay Sethupathi in a cameo—and runs him over. The driver quips that this marks the 36th time he has hit someone, shrugging off the grim tally and offering Chikku a lift.
The film closes with Chikku, now in Pondicherry, ordering a biriyani at a local restaurant, and the narrator voicing a hope that he might finally return to a simple life away from the violence that once shadowed his family.
