The story is set in Tamil Nadu. Athiyan is the superintendent of police in the Kanyakumari district and an encounter specialist. Satyadev opposes the practice of encounter killings. Athiyan takes down the Ganja mafia in the district after receiving a tip from Saranya, a government school teacher. Following Saranya’s rape and murder, Athiyan is determined to kill the perpetrator. When police officers suspect a tech engineer is responsible, Athiyan prepares for and carries out an encounter. However, after the operation, Athiyan and his team realize they had killed an innocent person. Who truly killed Saranya, why did it happen, and how does Athiyan seek to make amends?