Aditya Varadarajan is a video game developer who accidentally meets Taara Kalingarayar at his colleague's wedding. He later finds out that she is planning to pursue her studies in Paris. They soon begin to call each other often, go out together, and start to fall in love during a holiday that they take together. They agree that marriage is not for them and decide to have a live-in relationship instead, and Taara moves into Adhi's place, rented from Ganapathy. They wish to spend their time with each other before they go their separate ways for their respective careers. Taara and Adhi live happily, being playful with each other.

One midnight, Tara has a conversation with Ganapathy. She tells him that she might get her visa approved for going to Paris, and that it is hard for her to leave Adhi and go far away. The next day, Taara goes to Jaipur for her business, and Aditya starts to miss her terribly. Upon seeing the love and patience that Ganapathy has for his wife Bhavani, an Alzheimer's patient, who one day even forgets the way to her own house, they begin to understand the importance of each other's presence in their life.

Soon, Adhi is selected to develop his skills in video games and to go to US. He tells his colleague that it is hard for him to leave Taara. The next day, both of them make an agreement to enjoy themselves to the maximum for the 10 days left before they separate. Nearing the last day, they begin to have little fights and arguments, which do not last long.

One day, Bhavani goes missing again, as she did when she forgot her house address. While looking for her, they continue arguing about their relationship. Finally, Adhi proposes to Taara, and they decide to get married. Post marriage, both of them continue to accomplish their own dreams, one in Paris, another in the US. In the post credits, it is shown that Adhi has finished his project in US and has moved to Paris where they reunite and have a baby and arrive in India.