Ajith plays the title role of Dheena, while Suresh Gopi enacts the role of Ajith's older brother. Dheenadayalan (Ajith) is the brother of the local goon, Adikesavan (Suresh Gopi). He is eternally grateful to his elder brother and is ready to do anything for his elder brother. Dheena learns that his sister (Divya) is in love with a local boy, but Adikesavan thinks the boy is harassing their sister and goes after him. In a strange twist, their sister dies in the bargain. Adikesavan swears revenge and orders Dheena to eliminate the boy's family. But Dheena, who knows that the boy is innocent and also loves the boy's sister (Laila), refuses. This pits him against the brother he loves.