Three college friends — Malar, Mona, and Gayathri — form the heart of a story about first loves, misread signals, and the ripple effects of pride. Mona falls for Karthik, despite Malar's wary prediction that he’s a flirt who might not take relationships seriously. When Mona shares Malar’s concerns with him on a date, it triggers a clash: Karthik feels his freedom is being questioned, and a rift quickly forms between them. Soon after, Gayathri believes Mona was not the right match for Karthik and steps in to date him, only to see the same pattern replay itself — a relationship that collapses due to unresolved issues and a lack of trust.
Fast forward a year or two, and Karthik and Malar end up working in the same software company on different floors, a move that rekindles old tensions. One day, while trying to reach a friend on Malar’s floor, Karthik accidentally dials Malar, and the two realize they are still in the same building — and the old feud resurfaces with renewed intensity. During a lunch break, Vicky and Suja offer candid advice: Karthik should try to sort things out with Malar. Vicky even questions why Karthik would pick a fight with someone as compelling as Malar, prompting Karthik to take a closer look at the woman behind the feuds.
Intrigued and surprised by her depth, Karthik decides to observe Malar more closely. When he finally sees her, he experiences love at first sight and resolves to win her over. He schemes a reconciliation, but Malar remains cautious — she cannot forgive a reputation for flirtatious behavior so easily. Desperation drives Karthik to adopt a false persona, presenting himself as a kind, gentle man named Sundar in hopes of meeting Malar without the baggage of his real identity. Malar, who has never met Karthik in person, begins to open up to Sundar, believing she has found a sincere partner at last.
As the relationship deepens, the pair meet frequently, sharing moments and growing closer under the assumed identity. Yet the truth looms: Suja unearths Karthik’s ruse and delivers a crucial ultimatum — reveal your true identity once Malar declares her love for Sundar. The story pivots on Karthik’s attempt to salvage what he’s built with Malar, navigating humorous situations and heartfelt missteps along the way. The film’s tension builds toward the moment of truth: can Karthik come clean about who he really is, and will Malar accept him with all his flaws, or will the web of deception prove too tangled to untie?
From playful banter and mistaken impressions to honest confession and emotional vulnerability, the narrative explores how pride, fear, and persistence shape love. It remains a delicate dance between wanting to protect one’s image and risking everything for a genuine connection. The concluding chapters hinge on a single, life-changing revelation: the truth behind Sundar’s identity and Malar’s ultimate response to the man she has come to know, in a story that blends light-hearted moments with the warmth and caution of real relationships.