Vinu Ramachandran, Basil Joseph is a young executive working in Dubai, hoping to build a stable future. He is engaged to Anjali, Anaswara Rajan, and he forms a close bond with her brother, Anandan, Prithviraj Sukumaran, who works as a plant manager at a factory in Jamshedpur. Five years after a painful breakup with his ex-girlfriend Parvathy, Nikhila Vimal, Vinu still struggles to move on. Anandan, meanwhile, is not completely fulfilled either; he is temporarily separated from his wife, Parvathy, after an anonymous letter slandered her. Vinu, who begins to think of Anandan as the brother he never had, decides to do everything he can to ensure Anandan’s happiness and even helps him pursue a reunion with Parvathy.
But the situation becomes tangled when Vinu and Anandan meet in person for the first time and discover that the Parvathy in both of their lives is the same person. This revelation creates an awkward rift between the two men, testing their bond. In an effort to protect Anjali’s happiness and to respect Parvathy’s feelings, Vinu initially tries to stop the wedding with the help of his friends. He also enlists his colleague Kunjunni, Akhil R C Kavalayoor, though Kunjunni backs out at first because Anandan is his longtime friend from school and he doesn’t want to be pulled into a family feud. After a candid conversation with Anjali, Vinu shifts his mindset: he decides that everyone’s happiness matters, and he contemplates moving forward with the wedding.
Meanwhile, Anandan learns a shocking detail: Vinu’s former girlfriend is his own wife. He suspects that the love letter that reached Parvathy was written by Vinu himself, and that a long-brewing misunderstanding now threatens to derail the two couples. The tension escalates as Kunjunni, trying to help Vinu, attempts to ruin the wedding, but an angry Vinu slaps him, and Kunjunni switches sides to align with Anandan in an effort to stop the ceremony at all costs. The battle lines are drawn as Vinu works to prevent Anandan from wrecking the wedding—with the reluctant blessing of Sudevan, Jagadish, who is Anandan’s father.
The wedding plot thickens with another layer of opposition: Saravanan, Yogi Babu, once a friend who later became an adversary after a marriage Vinu inadvertently ruined, returns along with a stalker named George, Joemon Jyothir, who previously tracked Anjali. Both men seek to disrupt the ceremony, adding danger and chaos to the day’s events.
As the pivotal day arrives, Anandan confronts the truth in a heartfelt exchange with Parvathy, her father, and his own parents. He realizes that the love letter was a card played by his uncles to drive a wedge between the families, a deception they kept hidden from him because of his temper and outbursts. Overwhelmed by the revelation, he channels his emotions into protecting the wedding against those who seek to derail it. He confronts Saravanan, George, Kunjunni, and their goons, and with Sudevan’s permission to safeguard the family’s future, he helps quell the disruption.
In the end, Vinu and Anjali marry amid the chaos, and peace is slowly restored as Parvathy and Vinu reach a reconciliation with her. The story closes on a hopeful note, with both couples—Vinu and Anjali, and Anandan and Parvathy—embracing their happiness together, strengthened by forgiveness, honesty, and the ties that bind them. The film leaves viewers with a sense of resolution: love, trust, and family bonds can endure even when secrets and misunderstandings threaten to pull them apart.
