It has been a while since Tamil Directors used the Tamil Movie Giant Sivaji Ganesan properly (the last film which I consider Sivaji to have been used well is "Devar Magan"). Director S. A. Chandrasekar has not only used Sivaji well in this movie, but also provides a story which is slightly different from the traditional love stories of the Tamil movie world.

Vijay (Vijay) is a rich kid who has only one aim in life : to have fun. Manivannan is his Uncle. Vijay is the Managing Director of a big tea estate in Ooty and his company goes on a big loss because of his mismanagement. Vijay spends most of his time in partying and talking to girls whatever he feels like (like 'what do you think of love?'). But he does not mean anything he says to girls - he says he does not believe in Kadhal (love), Kalyanam (marriage) or Kaththiriukkai (brinjal / egg plant !). To manage the loss to his company, Vijay invites his Dad Rajsekar (who is in America) to come to India to sign some documents. As fate would have it, Vijay's dad dies in a plane crash on his way to India.


Manivannan comes up with this idea of making some elderly person to act as Vijay's father for a while (until the documents are signed). So they visit a Senior Home, where they meet Selvam (Sivaji) and they request him to act as Vijay's father. He agrees to it. He starts to act as Vijay's father. Selvam observes the careless, take-it-easy life style of Vijay and is reminded of his old days when he used to be like Vijay (movie clips for old Sivaji movie 'Iruvar Ullam' comes to help). Selvam is very affectionate towards Vijay and he considers him as his son. Vijay finds out about Selvam's past life: that Selvam was married to Santha (SarojaDevi) and they have been living separated for the past 30 years. He wants them to get united and he searches and finds the whereabouts of Santha.


Meanwhile, Kavitha (Simran) joins Vijay's company and she talks to Vijay in his own style ('What do you think of love?' etc.). Vijay is knocked out by Kavitha's beauty (who isn't ?!) and he falls in love with her. Then, their love gets into trouble because of Kavitha's mother. Now, Vijay tries to unite Selvam and Santha. In return Selvam tries to unite Vijay and Kavitha. Will Selvam and Santha meet and get married 'Once More' (hence the movie title!) ? Will Vijay and Kavitha get married 'At least Once' [this is my title! ;-) ] ? is rest of the story.