Following the deadly train bombing, the police launch 'Operation Ghost Hunt' to nab Perumal, the leader of the Praja Dalam. Although the group denies responsibility for the bombing, the police and government believe they are the perpetrators.

A corporate group intends to establish a mining company in a hilly region of Tamilnadu state, and the Praja Dalam has been opposing it and fighting for people's rights.

As the operation begins, a new recruit in the police force, Constable Kumaresh (Soori), is assigned to the Police Company that is searching for Perumal.

Kumaresh is a good-natured man who believes that police should work for the people and assists the villagers. When he helps an elderly woman get to the hospital, her granddaughter Paapa (Bhavani) develops feelings for him, and they gradually fall in love.

Kumaresh's good conscience leads him to question the police's inhumane practices. Paapa, along with other villagers, is also brought in for interrogation.

How far will Kumaresh go to save his girlfriend?