Police Constable Arumugam talks to the new Sub-Inspector, Arjun about Maari, a local rowdy who rose to fame after killing a rival rowdy, Pandi. He wants to gather evidence that Maari killed Pandi so that he can put Maari behind bars. Maari is an irritating guy who, along with his henchmen Sanikilamai and Adithangi, constantly pesters the people in the area and extorts money from them. His main line of work is training racing pigeons. His boss is Velu, a don who is involved in pigeon racing and sandalwood smuggling.
Maari constantly clashes with Bird Ravi, another local rowdy who is also working under Velu. The two rival bosses shape a tense balance of power in the neighborhood, where status and fear keep people in line and pigeons symbolize more than just sport—they represent control, loyalty, and a way to launder influence.
One day a new arrival, Sridevi, enters the business, aiming to open a boutique in Maari's territory. Maari forcefully makes her partner in the shop, and after he inflates a couple's order, she loses faith in his methods. She goes to the police station and decides to help the officer catch Maari by getting close to him, pretending to fall in love with him, and gathering evidence of his confession. Maari recounts a murder from eight years earlier in a drunken state—Pandi killed one of Maari's pigeons, and Maari stabbed Pandi, who was later killed by someone else, an act Maari took credit for. This confession becomes a pivotal thread that brings the uneasy balance between law, crime, and personal loyalty into sharper focus.
The next morning, Arjun arrests Maari, throwing the town into a new form of turbulence. Seven months later, when Maari is released, he discovers that Velu has also been arrested for sandalwood smuggling. The revelation shocks the community as rumors spread that Arjun is a corrupt cop, and that he and Ravi have manipulated arrests to extort money and threaten people, all under the pretext of fighting crime.
Maari decides to fight back, freeing the local people from Ravi's extortion and earning real respect from those who had once feared him. Sridevi apologizes to him and, in a surprising turn, falls in love with him for real. Sanikilamai reveals to Sridevi that Maari has always cared for his pigeons, a detail that underscores his humanity in a world built on intimidation and power.
In a bold move, Maari captures one of Arjun's smuggling vehicles and its driver, forcing Arjun to release Velu. The tension mounts as the sandalwood case files are reopened and people who were wrongly detained are released, further boosting Maari's standing among the locals. In response, Arjun burns Maari's pigeon coop, killing ten of his pigeons, a personal attack that triggers a fierce confrontation. Maari retaliates by beating up Arjun, Ravi, and their henchmen, and Ravi finally agrees to confess everything. The Revenue Department arrives and arrests Arjun after the incriminating details spill from the shadows of the case, closing a chapter of deceit that had stretched across the community.
As the dust settles, Sridevi approaches Maari to confess her love, only to be met with a blunt refusal. He returns to his familiar routine of pestering the locals and collecting money, choosing the path of street-level power over the complexities of a relationship. In the end, the neighborhood remains split between fear and admiration, with Maari carved out as a stubborn, contradictory figure who rides the line between protector and persecutor, all while pigeons circle above a city that never truly chooses a clear moral compass.
