Rishi

During a mission, Rishi watches Minister Devaraj kill Hema, a TV reporter who was about to expose him. Before dying, Hema hands a floppy to Rishi containing crucial evidence. Devaraj demands the floppy back, setting a motive for future conflicts.

Velu leads a simple life, working for a moneylender and supported by his friend Cheenu. He is a lookalike of Rishi, unaware that destiny will pull him into the criminal underworld. The car-lending Seth and Velu's routine existence are about to collide with Rishi's world.

Rishi and Velu’s worlds collide when they are mistaken for one another. The underworld targets Velu as a stand-in for Rishi, escalating the danger. The line between ally and rival blurs as the doubles run into each other.

During a mission, Nandhini is blinded. Rishi saves her life and arranges funds for her eye operation, becoming her protector. He parts ways with Sathya over this moral turn, though he remains reluctant to leave crime behind completely.

Indu becomes Velu's girlfriend, but she soon sees Rishi with Nandhini and suspects Velu of duplicity. She misreads the situation, thinking Velu is lying about his feelings. The growing mistrust strains both couples and deepens the central mystery.

A gang attacks Velu, pressing for the floppy. The attack heightens the danger surrounding Velu and raises Indu's suspicions. Velu ends up in the hospital, where he unexpectedly encounters Rishi, sparking a tense, necessary meeting.

In the hospital, Rishi and Velu meet and begin to understand each other's predicament. They forge a fragile alliance as they piece together the riddle of the lookalikes. The duo decides to cooperate to unravel the conspiracy.

Devaraj, sensing his political position weakening, kidnaps Nandhini with Sathya's help. He uses her as leverage to coerce Rishi into killing the Chief Minister. Velu becomes entangled in the plan by proxy as the pair tries to manipulate events.

Velu volunteers to take the assassination in place of Rishi, attempting to protect Nandhini and expose the conspiracy from within. He accepts the risk, entering the dangerous criminal theater with high stakes. The mission pushes the lookalikes closer to a deadly confrontation.

A climactic moment borrows from Die Hard 2 as Rishi tries to warn the security personnel about the plot. The guards and officials seem to be part of the conspiracy, rendering his warning useless. The plan unfolds with mounting danger for the Chief Minister.

The film ends abruptly with Velu being shot, the Chief Minister's life being saved by Rishi, and Devaraj arrested. The conclusion emphasizes the collapse of the conspiracy and the price paid by the lookalikes.