A police constable Arumugam (Kaali Venkat) talks to the new Sub-Inspector, Arjun (Vijay Yesudas), about Maari (Dhanush), a local rowdy who rose to fame after killing a rival rowdy. Maari is an irritating guy, who, along with his henchmen Sanikilamai (Robo Shankar) and Adithangi (Kalloori Vinoth), constantly wikt:pester the people in the area and extortion money from them. His main line of work is in training racing pigeons. His boss is Velu (Shanmugarajan), a bigger don who also is involved in the sparrow races, as well as the smuggling of sandalwood.