Anuradha struggles to sell her house for her father Ganesan's Alzheimer's treatment. As she solves a hacker crisis at her workplace, her father's hallucinations dangerously escalate.
Determined to save her father from the police, Anu covers up a murder. But, unfortunately for her, Paranthaman and Sudalai rope in an autopsy specialist, Dr Yesu.
The station receives a fax about three criminals on the loose in Chennai. Failing to find the murder weapon, Sudalai decides to meet Ganesan, posing a new challenge for Anu.
Anu with the dead woman, Malar with the hacker and Sudalai with a new murder - each one finds new clues. Who will take the lead in this pursuit of leads?
The criminal trio's presence at the crime scene puts Sudalai and his squad in a whodunnit dilemma. Meanwhile, Anu tries to access the hacked data, suspecting an impossible link.
As Sudalai and Anu dig deeper, startling truths and tragic pasts come to light. Additionally, Malar and Binu's quest for the hacked file leads them to untangle several knots.
While Anu unearths her own dark past, she and Sudalai launch a hunt for Yesu. With the clock ticking away, the stakes rise higher when Anu and Yesu meet for a final showdown.