Marudhu, a sailor, arrives at
Rameswaram port,
Tamil Nadu from
Rome,
Italy after being away for 14 years. At Senthil Aandavar Bar, a popular bar in the port, he meets Nandu while playing cards against Dorai and his posse at the bar. Marudhu asks Nandu where the church is. Nandu directs Marudhu to the church, where he tells the
parish priest, Stephen, the story of a captain who attempted to escape from his capsized ship. Marudhu later meets Nancy, who overheard his conversation with Stephen, at a
roadside restaurant run by her sister-in-law, Mercy. One day, Nandu comes to the bar with a bandaged nose. After seeing that Nandu is hurt, Marudhu looks for Dorai. A member from Dorai's posse tells Dorai that Marudhu is looking for him and Dorai goes in search of Marudhu. Marudhu finds Dorai fights him and his men. While fighting Dorai, Marudhu asks him who is he looking for, and if it is his lover. Nancy, overhears their conversation and, distracted by her thoughts, gets her dress stuck on train tracks as she is walking. Marudhu saves Nancy from an incoming train. She tells Marudhu to come to the only lighthouse in town at 6p.m. Later that day, Marudhu is directed to remove a stuck object from his ship's propeller. While effecting the repair, the propeller turns on and Marudhu is injured, making him unable to go to the lighthouse. To Marudhu's dismay, Nancy tells Marudhu that she was not waiting for him, but for a ship captain that she had met three years ago while selling mangoes and had fallen in love with. The ship captain had told her not to wait for him because she was too young to make a proper judgement about love, but he gave her a ring. Nancy also persuaded him to promise to return in one year. Marudhu decides to help Nancy in her search for the ship captain. The search proves difficult, however, because Nancy does not know the captain's name, as she only addressed him as "Sir" and "Officer". After Marudhu reveals his love for Nancy, she distances herself from him. One day, Nancy comes across Joe, a crewman who sailed under the ship captain, after recognising him in the bar. Joe tells Nancy that the ship captain's name is Mukundan and that he died in a shipwreck. The next day, Mercy wakes up and realises that Nancy is missing. She tells Marudhu to go find Nancy. He gets on a ship docked at the port going to
Sri Lanka after being directed there by one of the people working in the port. He finds an emotionally unstable Nancy sitting in the ship. Marudhu tries to get Nancy off the ship, but a man named Adam tells him that he cannot take her unless he fights him. After they fight, Nancy jumps off the ship and Marudhu follows to save her. At night, Nancy and Marudhu sail on a canoe in search of Mukundan, when Marudhu accidentally loses Nancy's ring. The next day, he returns the ring to Nancy and tells the church father that he and his ship crew are planning to leave
Christmas night. He writes his name on one piece of paper and "Captain" on the other and asks the church father to choose one of the papers, which he takes with him. On
Christmas Eve, a man, unbeknownst to Nancy, arrives in the port. Marudhu helps the man get off his boat although Marudhu does not know that the man that he helped is Mukundan. Marudhu asks Nancy if she is willing to accept his love. He starts to open the piece of paper to sees whose name is written, before Nancy stops him and agrees to marry him the next day, on Christmas. During their wedding, Nancy sees Marudhu and a group of other men dancing with
Santa Claus masks. One of the men kneels and presents a ring on Nancy. To Nancy's surprise, the man removes his mask and reveals that he is Mukundan, not Marudhu. A depressed Marudhu leaves aboard his ship and drops the piece of paper into the ocean. == Cast ==