A principled government doctor Thangam clashes with ruthless gangster Arnold over a postmortem that could expose dark secrets, igniting a tense battle of morality, revenge, and power. As egos collide and violence escalates, the conflict tests the limits of justice and brutality in Chennais underbelly. This gritty Tamil thriller delivers intense confrontations and strong performances, though it falters in the second half with uneven pacing.