Plot
2000: Sannasi Thevar begins issuing short-term loans to traders in a local market, threatening the business of the woman who holds the market lease. When she confronts him, Sannasi’s youngest and most violent son, Saravedi, murders her in public, enabling Sannasi to expand his criminal influence without resistance.
2019: Pulikkuthi Pandi, a young landowner known for confronting injustice, is frequently at odds with local authorities. During one arrest, he meets Seeni Servai, who has been detained for stabbing a con artist who swindled his sons, who are alcoholic gamblers. Pandi also meets Seeni’s daughter Pechi and quickly falls in love with her, although she disapproves of his aggressive behavior. After their release, Pandi approaches Seeni to propose marriage but is rejected by Pechi.
Seeni then reveals the truth about Pandi’s past. Years earlier, Pandi’s father Karumbalai Pandi, a respected activist, saved Seeni from a gangster. In the fight that followed, the gangster was mistakenly assumed to have been killed by Karumbalai. A corrupt police inspector used the incident to suppress Karumbalai’s activism, coercing Seeni into giving false testimony that led to a wrongful conviction. Karumbalai was executed, and Pandi’s mother died in shock, leaving young Pandi an orphan raised by an inept uncle. Determined to emulate his father’s ideals but hampered by a volatile temper, Pandi grew misunderstood by the villagers.
Moved by Seeni’s confession, Pechi agrees to marry Pandi if he abandons violence. Pandi attempts to find respectable work but is only offered jobs that require force, reinforcing his reputation. Vowing to change, he avoids conflict until he is forced to defend Pechi from a group of thugs. He soon learns they were hired by Sannasi, now a powerful crime lord in the nearby town of Sivagangai. Sannasi preys on Seeni's family through unpaid debts and is protected by his three older sons—a high-ranking police officer, a public prosecutor, and a political leader—while Saravedi remains feared as the clan’s most dangerous enforcer.
To free Seeni from debt, Pandi sells one of his ancestral homes to Sannasi and marries Pechi. Unbeknownst to them, Sannasi had planned to force Seeni into giving Pechi to Saravedi as repayment. When the marriage undermines his plan, Sannasi sends his mistress, Chittu, to live near Pandi’s home. After Pechi and her sister-in-law humiliate Chittu for proposing that the sister-in-law become Sannasi’s second mistress, Chittu manipulates Sannasi into escalating hostilities.
One night, a drunk Sannasi mistakenly enters Pechi’s home and attempts to assault her. Pandi helps drive him out. A newly appointed inspector, Ramanathan, seizes the opportunity to arrest Sannasi, hoping to dismantle the family’s criminal empire. Fearing that the arrest will expose decades of wrongdoing, the Thevar family offers reconciliation: if Pandi withdraws the case, they will return his ancestral property and grant him part of their land. Pandi agrees, and both families meet at the registrar’s office. After the documents are signed, Sannasi demands that Pandi bow down before him for forgiveness. As Pandi complies, Saravedi beheads him and parades the head through the village before surrendering.
That night, while Sannasi’s extended family celebrates at a temple festival, a bomb explosion triggers chaos. Pechi, her relatives, and Pandi’s friends use the confusion to kill Sannasi and his accompanying men. When Sannasi’s older sons learn of the killings, they attempt to capture Pechi but are cornered and killed one by one.
With Saravedi now the last surviving heir, the inspector attempts to protect him by transferring him to a safe house. Pechi, determined to avenge Pandi, intercepts the police van. Saravedi escapes his restraints and fights back, overpowering the group, but is eventually subdued and killed by Pechi.
