Ram Kapoor, a businessman, is fun-loving and kind-hearted and has recently tasted the success of his food delivery start-up with the help of his friend and business partner, Alekha Malhotra. He lives with his mother, Shalini Kapoor and best friend, Shardul, and is in a relationship with Kriti, whom Shalini disapproves of. On the other hand, Dr. Priya Sood, a dentist, is an optimist who lives with her parents and younger sister, Ritika, and has been in a relationship with Yuvraj Sharma, a competitive, overly ambitious person for the past six years.
The story takes a turn on New Year's Eve, where Ram celebrates his success with his colleagues, Yuvraj chances upon Alekha, and plans to become rich and successful instantly like Ram by hitching with her. Ritika suspects Yuvraj's behaviour, but Priya refuses to believe it, until finally he breaks up, leaving her devastated. He does so to be ahead of his friend, Akhil, who already has ditched Priya's friend for Ram's cousin, Sonalika. Priya's mother and sister inform Ram of Yuvraj's ill intentions during a ceremony meant for Yuvraj and Alekha as well as Akhil and Sonalika, held at the Kapoor Mansion.
Meanwhile, Shalini takes an instant liking towards Priya after a visit to her clinic on New Year's Eve, and wishes to have Ram marry her. She becomes happy assuming Ram and Priya are already in love with each other. Later, Ram and Priya are hospitalized after being injured in a shootout, where the paparazzi capture the two and wrongfully tag them as a couple. Shalini’s health deteriorates and she needs surgery. Her condition for getting it is if Ram gets married within the next week which is the same timeframe she has to get the surgery.
The news about Ram and Priya excites Shalini, who then approaches Priya's mother with their marriage proposal, and the latter instantly agrees as she feels Ram is the apt partner for Priya. Priya originally decides to say no to the relationship but Ram convinces her to say yes, saying that they have to remain married for three months so Shalini will get the surgery. Priya agrees and they hold the engagement. Yuvraj, scared that Priya will reveal why he is marrying Alekha, decides to expose the contract papers for the marriage. Shalini finds the papers and asks Priya and Ram about it. Priya twists it, saying that since people would assume that she was a gold digger, she had the papers made so no one would doubt her. Shalini now says that no one can doubt Priya because of how good she is. Shreya, Ram's cousin, and Kriti try to cancel Ram and Priya's marriage but it proceeds anyway and they start their journey thinking that it is just a three-month marriage contract.
Over the period, Ram and Priya come closer to each other, but this comes at the cost of the former's friendship with Alekha, who believes Ram is unjust towards Yuvraj post-marriage. On the other hand, Ram's relatives - Avinash and Shivani (paternal uncle-aunt), Tej and Mitali (maternal uncle-aunt), and Shreya (Tej-Mitali's daughter) plot to acquire the Kapoor wealth by poisoning Shalini through their housemaid Sheetal. When Sheetal backs out, Avinash injures her, slipping her into coma. Anju and Priya suspect foul play. This leads to Priya discovering that Shalini is being poisoned.
In an attempt to discard Priya as her major obstacle, Shreya defames Priya by publicising her pictures with Yuvraj. Despite the allegations, Ram still trusts Priya and confesses his love for her. Shalini, who too suspected Priya of foul play realises her mistake when Sonalika reveals Akhil's deceit, and how Priya has been her support. Soon enough, Ram and Priya are kidnapped after Kriti sedates their drinks, however, to her oblivion, Shreya uses this as an opportunity and is revealed to be the mastermind behind the kidnapping. Through this, Shreya and the relatives coerce Shalini to sign the will, but fail to do so. Ram and Priya save themselves and confess their love to each other and return to the Kapoor Mansion. Ritika exposes Shreya, who eventually confesses of all the wrongdoings, including how the Kapoor's relatives murdered Ram's father in the same fashion they did for Shalini. Shreya, Avinash, Shivani, Tej and Mitali are arrested for their crimes. Alekha breaks up with Yuvraj for his deceit. Kriti too leaves after Ram professes his love for Priya.
The couple finally reveal to their family of their contract marriage plan, but have fallen in love with each other. Sanjeev finally accepts Ram in the gesture the latter asked to. The story ends on beautiful takeaways of a love story from Ram and Priya amidst the rains.
