Jai (Siddharth Malhotra) and Dia (Katrina Kaif) are childhood sweethearts. Jai is a Mathematics scholar who grows up to a talented professor and Dia takes further her love for arts, paintings and turns into a renowned artist.
Their life witnesses an unusual turn as Dia proposes Jai for marriage. Like many young, confused youths Jai gets scared of all the responsibility and compromise that come with marriage, considering it a hindrance in his career. Then starts the time travel twists that take Jai to the future and shows him glimpses of his life in parts.