Vasu(Dhanush) spends his time hanging out with friends and teasing girls and for this, is always at the receiving end of his father's(Manickavinayagam) scoldings for being a good-for-nothing. Viji(Chaya Singh) is one of the girls he rubs the wrong way. When one of his pranks results in his older brother(Krishna) going to jail, Vasu takes a turn for the better and moves to Chennai after taking up a good job. Viji also lands up there and the two continue to aggravate each other.