The story revolves around Adi (played by Dulquer Salmaan) and Tara (played by Nithya Menen), a young couple with modern views on love and relationships. They decide to live together without getting married to experience the joys and challenges of a committed relationship.
In the resolution, Adi and Tara face various ups and downs in their relationship. Adi gets an opportunity to pursue his dream job in the United States, leading to a moment of contemplation for the couple. Despite their strong bond, they decide to part ways temporarily to chase their individual aspirations.
The film concludes with Adi and Tara meeting again after a few years. They have achieved their individual goals and, with a mature perspective, decide to reunite and continue their journey together.
In summary, “O Kadhal Kanmani” explores the complexities of modern relationships and the balance between personal aspirations and shared commitment. The movie showcases the growth of the central characters and their reunion after pursuing individual dreams.