Kaaliyan is a village president in the Madurai district, who is fondly called Annaatthe. His nieces compete with each other to marry him. But, he falls in love with another woman who visits their village. Kaaliyan has a sister who gets married and shifts to Kolkata where she faces some unknown threats. Soon, her brother comes to her aid.

Kumaresan, a police constable, gets recruited for an operation implanted to capture Perumal Vaathiyar, who leads a separatist group dedicated to fighting against the authorities for committing atrocities against innocent village women in the name of police interrogations.