Pia Jaisingh, a privileged teenager from South Delhi, navigates the difficulties of her tumultuous family life. Her father, Rajat Jaisingh, expresses disappointment in her gender, constantly wishing for a son, which leads him into an affair with a younger woman named Anahita. Meanwhile, Pia's mother, Neelu Jaisingh, is a socialite who endures the challenges posed by her husband's actions. Pia attends the elite Falcon High School, which is filled with affluent students. During a bonfire night, a rift forms between Pia and her best friend, Sahira, when Sahira suspects Pia of having an affair with Ayan Nanda after seeing flirty messages on Pia's phone. To dispel Sahira's doubts, Pia fabricates a story, claiming she already has a boyfriend.
In a twist of fate, Pia encounters Arjun Mehta, a dedicated, middle-class student hailing from Greater Noida. To garner his cooperation, she offers him ₹25,000 (approximately US$290) weekly to pose as her boyfriend. As they navigate this arrangement, Pia begins to share snapshots of their time together on social media, convincing her friends that she is not involved with Ayan, leading to a reconciliation with Sahira. During a family dinner, Rajat discovers that Arjun plans to compete in an international debate competition and encourages Pia to join as well. Although Arjun is hesitant, he eventually agrees, and their relationship evolves into something deeper – a budding romance.
However, events take a dark turn on Diwali night when Pia uncovers her father's affair and the fact that Anahita is pregnant. Heartbroken, she and her mother leave for her maternal home, where Pia, overwhelmed with emotions, breaks her phone. This incident leads to a crucial moment—she forgets about the upcoming debate competition. Meanwhile, Arjun attempts to reach her, believing that Pia has used him for amusement, leading him to assume she isn't interested in the debate club. To distract themselves, Pia and her mother retreat to a family friend's palace, where a photo of Pia with Rudra is misconstrued as an affair, further complicating matters.
After receiving a new phone, Pia realizes her mistake and remembers the debate competition. However, the photo with Rudra infuriates Arjun, and in a fit of anger, he blocks her online. When Pia tries to explain her situation, Arjun publicly shames her at school, revealing their financial arrangement. Amidst the turmoil, he faces challenges with his scholarship applications, seeking guidance from his teacher, Mrs. Braganza. Encouraged by his father to value relationships, Arjun eventually softens. Later, he receives news through Mrs. Braganza that Pia, unbeknownst to him, submitted his scholarship application, resulting in his acceptance. As their personal lives unravel—Pia learning that her parents are headed for divorce—Arjun realizes the extent of his misunderstanding.
After reflecting on their complicated relationship, Arjun reaches out to Pia, who remains unresponsive. At long last, during their bonfire night reunion, he offers a heartfelt apology and a proposal, which she joyfully accepts. Their paths diverging, Arjun heads to London for his studies while Pia chooses to attend a national law college in India, marking the beginning of their individual journeys. The film captures the essence of youth, love, and the challenges of navigating personal and familial expectations, reminding us of the emotional complexities that shape young adulthood.
