In a cramped Mumbai apartment, journalist Jayakanthan, Arya known as JK Boss, photographer Nagaraj, [Santhanam], and Cheenu, [Premji Amaran], share a cluttered, debt-ridden life. Their routine is turned upside down when J.K.’s air-hostess fiancée, Madhumita, Hansika Motwani, agrees to deliver a package for a dangerous crime boss named Guna, without understanding what she is carrying. To keep things simple, J.K. asks Nagaraj to handle the delivery, but a sudden bout of diarrhea after tasting Ileana Chicken from a roadside eatery prevents him from going himself. With Nagaraj indisposed, he passes Madhumita’s package to Cheenu, along with another package that contains his own stool sample destined for his doctor. A fateful mix-up occurs when Cheenu swaps the two bags—an error that immediately catches Guna’s attention and triggers a furious interrogation by the crime lord, as Richard, Ashwin Mushran, reports that Madhumita may be the culprit behind the confusion.
As tensions simmer, Nagaraj quietly documents his landlord’s life with a prostitute and sends an envelope of photos as blackmail, adding another thread to their already tangled situation. Meanwhile, J.K. and Madhumita become entangled in a separate moment of danger when his colleague Shakthi, Anjali, calls him under the guise of work. They end up at a party instead, where jealousy erupts in the presence of Rajeev, Shakthi’s ex-husband, who shoots at them in a fit of rage before the couple barely escapes. The chase underscores how quickly loyalty can fracture when money and danger collide.
Richard informs Guna that the package mix-up likely stemmed from Madhumita’s ignorance about what she carried, and the tension escalates when J.K. returns to his apartment to find Guna looming over Cheenu, who is strapped to a stool with a noose around her neck. Under severe pressure, Guna uncovers the truth: the real package—the one containing something valuable—must be with Nagaraj’s doctor. The suspense reaches a turning point when Nagaraj retrieves the package from the doctor’s office, revealing thirty diamonds hidden inside. With the diamonds reclaimed, Guna orders his henchmen to eliminate the three roommates.
A desperate moment follows as one of the would-be shooters targets J.K., but Cheenu’s quick thinking saves them when a teammate kicks the stool away just as danger closes in. The apartment ceiling caves in under the strain, injuring Guna and his men and giving the trio a chance to escape with the diamonds. They hole up for the night at Shakthi’s place and, with the morning light, sell the sparkling loot to a local jeweler, hoping the danger has passed.
Yet danger has not finished with them. Guna has Madhumita abducted and demands the diamonds back, pushing the trio toward a high-stakes plan to recover the money. When the jeweler tries to push a double payment, the trio—Honda-be-damned and resourceful—devises a bold caper. Nagaraj, Cheenu, J.K., and Shakthi disguise themselves as burglars, gag the shopkeeper, seize the diamonds, and reclaim the money. They race away in J.K.’s car with police snapping at their heels, taking the confrontation to a hotel where Madhumita is being held for the exchange.
A tense gunbattle erupts as Guna’s gang clashes with the police, leaving a narrow path to survival for the central trio and their allies. When the dust settles, Nagaraj, Cheenu, J.K., Madhumita, and Richard emerge as the surviving players, while Shakthi—aware of J.K.’s engagement—walks away from him. A final twist reveals that Nagaraj did not return the cash to the jewelry storeowner and had kept it for himself, signaling a questionable victory. The film ends with Shakthi returning J.K.’s car hubcap—lost during their getaway from Rajeev—and J.K. leaping into her car, sealing their escape with a kiss that hints at a complicated future.
