Suspenseful and scintillating, this fast paced thriller follows a feud between two powerful men, advocate Ramesh Nambiar and Devaraja Pratapa Varma.
When Arun Kumar (Indrajith Sukumaran) murders a girl at Bangalore Medical College, advocate Ramesh Nambiar's (Mammootty) sister Aswathy Nambiar (Bhavana) witnesses the murder. Arun, along with his two relatives Mahindran and Ganeshan (Manoj K. Jayan and Shammi Thilakan, respectively), inject morphine in Ashwathy's body and Arun rapes her. Karthik, Aswathy's lover and the beloved younger brother of Devaraja Pratapa Varma attempts to save her but he is killed and she falls into a coma.
Antony Punnekkadan IPS (Suresh Gopi) a police officer, is in charge of the case and he arrests Arun. However, Arun is saved from the case by advocate Ramesh Nambiar, who is unaware that Arun is behind his sister's ill fate.
This incident enrages Devaraja Pratapa Varma (Mohanlal), and he himself seeks revenge on his brother's killers and kills Arun. But Antony witnesses this and arrests Devaraja. Devaraja and his assistants play a drama and trick Ramesh into believing that Devaraja is innocent. Ramesh, with his excellence in the court, saves Devaraja from the case. Afterward, Devaraja reveals to Ramesh that he is the real killer and that he had played a trick on Ramesh as vengeance for saving Arun.
This triggers a feud between Devaraja and Ramesh. When Devaraja tries to kill the remaining two relatives who were involved in the crime, Ramesh traps him and he is eventually arrested by Antony. After that Ramesh comes to know about what really happened to his sister through Vinod Bhaskher (Jayaram), her teacher. When Devaraja escapes from police custody, will Ramesh go after him or join him in punishing those responsible for the heinous crime against his sister?six