Rhea gets married to a man chosen by her family, whose name is Sameer. The marriage does not last long, and ends in a divorce, with Rhea living alone with her mother. She meets with another man named Karan, and after several confrontations and misunderstandings she begins to fall in love with him. Rhea introduces him to her mother, who approves of Karan. When the time comes for the engagement ceremony, Karan tells her that he only wants to bring some happiness in her life, had never considered himself a groom. Much to Rhea's shock and disbelief, he tells her that he would like her to get married to a man named Mihir, who he feels is good enough to be her new husband.
Both Rhea Rani Mukherjee and Karan Saif Ali Khan meet on a flight from Mumbai to New York as both are going to study there. On the flight there they meet, talk however Rhea finds Karan's fresh attitude disengaging and when he kisses her they part on angry terms. Than they continue to meet over the years including in New York and when Rhea is getting married. Karan and Rhea's relationship develops as their meetings continue - will they end up together?
After a failed marriage between Rhea and Sameer, Paris-based Rhea meets with Karan Kapoor while on a flight from Paris to Bombay, and both are attracted to each. On her return to France, they meet again, and this time Rhea introduces Karan to her mom, Parminder Prakash, and Karan, in turn, introduces them to his dad, Arjun Kapoor. Rhea hopes that Karan will propose to her, as she is in love with him, only to find out that Karan has been busy looking for a groom for her - which he has found in his childhood buddy, Mihir Vora. Will Rhea accept this arrangement?
Hum Tum Preview
Hum Tum is the story of two people who are repeatedly brought together by destiny. Yet the two fail to heed the call of destiny and keep on meeting and separating over a period of a good number of years before realizing that they are perhaps destined for each other.
After his forgettable directorial debut in Mujhse Dosti Karoge, Kunal Kohli returns with the promise of wholesome entertainment in Hum Tum
The film tells the story of a cartoonist Karan Kapoor (Saif Ali Khan), who works for one of India's leading newspapers. His cartoon strip, titled 'Hum Tum', revolves around two characters - one male and another female.
The fictitious cartoon strip turns into reality for Karan himself in an uncanny way after he meets Rhea (Rani Mukerjee) for the first time in Amsterdam. The two are simultaneously attracted and repulsed by each other. Their opinions fail to match and they disagree on almost anything. But there is still an unseen thread that binds the two together at subliminal level. Karan involuntarily kisses Rhea during one of their talks with the result that their meeting ends on a sour note.
Six months pass and their paths cross again in New York. By this time the two had comfortably forgotten about each other. But, seeing Karan with his girlfriend, Rhea decides to make him pay for the Amsterdam kiss and tells Karan's girlfriend about the incident, thereby leading to a break off between the two.
This sweet and sour relationship between Karan and Rhea continue for a number of years. During this time Rhea goes through many emotional upheavals and Karan too matures into a responsible person. He even becomes close to Rhea's family and tries fixing her marriage with a friend of his. But to no use. No one knows what is in Rhea's heart. No one knows what destiny has in store for the two of them.