The story is narrated through flashbacks.

Velu (Sri), a teenager, works in a roadside shop. He meets Jyothi (Urmila Mahanta), who is a maidservant at a few of the nearby apartments. Velu falls in love with Jyothi.

Aarthy (Manisha Yadav) lives in one of the apartment buildings. Dinesh (Mithun Murali) is a student who resides in the same building. Dinesh is a spoiled brat. As luck would have it, Aarthy falls for him without knowing his true intentions. Dinesh too is attracted to Aarthy. He seizes the opportunity and shoots video clips of her private moments on his mobile phone and even circulates them among his friends via MMS. When Aarthy finds it out during a date with him in a beach resort, she is aghast and threatens to approach the police. An angry Dinesh plans to ruin Aarthy's life by killing her through a car accident, but she manages to escape from it. He plans to throw acid on her face, but Jyothi accidentally intervenes and thus sustains serious injuries in the process.

The movie picks up speed as the corrupt Police Inspector Kumaravel (Muthuraman) begins investigations. Kumaravel negotiates with Dinesh's mother, who is a school correspondent, but refuses later due to her stubborn character and completes the investigation with Dinesh as the culprit of the murder attempt. But Dinesh's mother approaches the minister (with whom she is having an affair) and asks him to intervene. The minister and Kumaravel negotiate, finally agreeing upon for an amount of 10 lakh rupees to be paid to the latter by the former for the release of Dinesh from the investigation.

Kumaravel then blackmails Velu into standing in the shoes of the accused in front of the court if he wants to cure Jyothi. Velu accepts and is sentenced for several years in prison. Kumaravel has now received the money and uses it to complete the construction of his house. Unlike what he had planned, he gives nothing to Jyothi. Later, Jyothi gets to know that Velu did not commit the crime and is falsely accused in order for her to be cured. She realizes that Kumaravel has cheated her and Velu. Angry, she goes to the court and throws acid on Kumaravel. She is immediately arrested, and as enquiries run course, the judiciary finds Velu innocent and releases him. Dinesh is arrested and Jyothi is sentenced for years in prison for her crime.

In the final scene, Velu meets Jyothi in prison, proposes his love, and tells her that he will be waiting for her. As he leaves the cell, the door closes with the disfigured face of Jyothi shown on screen.