Determined to prove himself, Chidambaram seeks employment with Ambalavaanan, a temple trustee and a secret diamond smuggler who hires him.

Assumed to be part of the gang, Chidambaram flees, discovering a murdered dancer, Aasha, and inadvertently leaving fingerprints on the dagger.

Uma's father, Nachiappan visits the police station to report Chidambaram missing but discovers he's a wanted suspect.

At Masilamani's residence, the intrigued Beemarao, Arun, and Uma discuss visiting a nearby telephone availability, suspecting Ambalavaanan staged a motorcycle theft report.

In a shocking twist, Masilamani, Arun's father, is revealed to be the notorious "Black Cat," the mastermind behind the smuggling operation.

Beemarao's investigation proceeds to the dacoited house, where the inmates reveal that the thieves seemed familiar with the layout, looting swiftly.

It is revealed that Masilamani had secretly alerted the thieves, instructing them to call off the dacoity attempt, thereby foiling Beemarao's plan to capture them.

Further, Beemarao's suspicions intensify as he observes Masilamani's car, caked with dirt and leaves, hinting at a secretive forest excursion to warn the thieves.

Meanwhile, Masilamani's thoughts drift to Aasha, whose betrayal in a high-stakes deal with a Sheikh had ignited his fury, culminating in her gruesome murder at her home.

Beemarao's investigation at Aasha's house reveals a crucial clue: the perpetrator has a habit of drinking lemon tea.

Masilamani successfully frees the supposed dacoity gang members but is stunned to discover they are actually police inspectors in disguise.