Bhaskar (Satya) is a happy-go-lucky engineering student. His carefree attitude has earned a handful of friends cum fans in his college, but at the same time it has also earned the wrath of his father, who doesn't share a good rapport with him. Then there is Yamuna (Sri Ramya), the chirpy beauty who joins Satya's college. Being a topper, she is always studious, silent and reserved. It is love-at-first-sight for Bhaskar, who is now behind Yamuna to propose his love. When she rejects him, he even goes to an extent of jumping from the top of a building. Soon he realizes that love cannot happen out of compulsion. After much drama, Yamuna accepts Bhaskar's love.
Enter Chandrika (Vinothini), the filthy-rich business woman, who also happens to be Yamuna's local guardian and sponsor. Yamuna suddenly disappears from her college for about 20 days and when she comes back, she refuses to talk to Bhaskar. Heart-broken Bhaskar takes the help of alchol and even visits a brothel to forget his pain. But to his dismay, he finds none other than Yamuna at the brothel. So who is Yamuna? What is her story? How is she connected to Kanni Vaasal?