The film is based on the battle exploits of Kunjali Marakkar IV, the naval chieftain of the Samoothiri. Kunjali Marakkars organised the first ever naval defense off the Malabar Coast of India against the Portuguese invasion, for almost a century.

Three students are murdered in mysterious circumstances in a medical college. A medical college is filled with fear when a student is found murdered in mysterious circumstances. The police arrive and begin their investigation, but are unable to prevent the murder of two more girls. Finally the DIG (Vani Viswanath) decides to take over the case. Will she solve the mystery?