Sakthivel (Ajith Kumar) is an implicitly obedient son of a sincere policeman, Rajarajan (Raj Kiran). Sakthi and his dad's dream is the same: That of seeing him enter the police force. The entire family comprising two other daughters, the mom (Saranya) and a wastrel of a brother-in-law (Vivek) are cuddly and close-knit. Rajarajan is from the old school of life and honesty is his watchword. In a venal system, this lands him in trouble often. ivya (Trisha Krishnan), a college girl, is a charming full-of-beans girl. She has some comical run-ins with Sakthi, and eventually falls in love with him. Just as he is about to join the police force, destiny decrees otherwise: His life is not going to be the same again. A dad's dream lies shattered while a son, despite his unwillingness, has to fight an honest war beyond the matrix of a law. It is a situation that is actually an emotional cauldron. How the dad and son reconcile to the new reality is the story.