| Director | Mani Ratnam |
|---|---|
| Budget | $2 million |
| Box office | $6 million |
Karthik Varadarajan is an independent software engineering graduate from an affluent family who runs a tech startup with his friends. At a wedding, he meets Shakthi Selvaraj, an idealistic medical student from a traditional middle-class background. After a series of chance encounters on their daily commuter trains, Karthik aggressively pursues Shakthi and proposes marriage. Shakthi is initially reluctant, citing their disparate socio-economic backgrounds, but eventually reciprocates his feelings. Karthik convinces his parents to formally approach Shakthi's family for her hand. However, the parents clash bitterly during the meeting over class differences, prompting a devastated Shakthi to call off the relationship and leave for a medical camp in Kerala.
While separated, Karthik and Shakthi realize the depth of their bond. They reunite and secretly marry via a civil registration without their families' knowledge or consent. To prevent familial distress, they continue living separately with their respective parents, keeping the marriage a secret while waiting for an opportune time to disclose it. Tensions erupt when an affluent family arrives at Shakthi's house to negotiate an alliance for her elder sister, Poorni. The visiting family unexpectedly proposes a double wedding, intending to marry their younger son to Shakthi as well. Left with no choice, Shakthi confesses her existing marriage to Karthik. Concurrently, Karthik confesses the truth to his family. Outraged by the perceived deception, both sets of parents disown and evict the newlyweds from their respective homes.
Karthik and Shakthi move into a modest, half-constructed apartment to begin their lives together. While initially blissful, they soon find that domestic life introduces unforeseen financial and emotional friction, leading to frequent ego-driven arguments. The strain deepens when Shakthi learns that her estranged father has been hospitalized with severe illness. When she asks Karthik to accompany her to the hospital, he hesitates, citing her father's intense resentment toward him. Though he relents the following day, her father passes away before they arrive. Wracked with guilt and grief, Shakthi emotionally distances herself, and the couple enters a period of bitter, silent alienation.
Anxious to repair the damage to Shakthi's family, Karthik secretly intervenes to salvage Poorni’s broken marriage alliance. He facilitates private meetings between Poorni and her original suitor, successfully helping them reconcile and secure their engagement. Karthik keeps this intervention a secret, intending to surprise Shakthi once the wedding is officially finalized. However, Shakthi spots Poorni hugging Karthik at a railway station in a moment of pure gratitude. Misinterpreting the embrace as an extramarital affair, Shakthi returns home deeply embittered.
Shakthi eventually visits Poorni, who discloses Karthik's selfless efforts on her behalf. Overcome with remorse for doubting her husband, Shakthi rushes home to reconcile. Simultaneously, Karthik's startup secures a lucrative contract. Eager to celebrate the milestone and reconcile with his wife, Karthik heads to the railway station to meet her for their usual evening routine. Meanwhile, in her frantic rush to return home, Shakthi is struck by a speeding vehicle. When Shakthi fails to arrive, a panicked Karthik launches a desperate search across the city's medical facilities, ultimately locating her in a critical care unit, where she lies in a coma following emergency neurosurgery.
An Indian Administrative Service (IAS) officer named Ram steps forward, claiming responsibility for the accident and explaining that he admitted her to the hospital under a temporary alias to expedite her treatment. As a frustrated Karthik vents his anger, Ram’s wife intercedes, confessing that she was the one driving the vehicle and that Ram was merely taking the blame to shield her from prosecution. Witnessing Ram's profound protective devotion to his wife, a chastened Karthik reflects on his own shortcomings as a spouse. Sitting by Shakthi's bedside, he confesses his regrets and vows to be a better partner. Shakthi subsequently regains consciousness, and the couple tearfully reconciles.