The Secret Letters and a Missing Sister
Lara Jean Song Covey lives a quiet life, often overshadowed by her older sister, Margot, and caring for her younger sister, Kitty, and their widowed father. Margot, the responsible sister, is about to leave for college in Scotland, a decision that affects Lara Jean, who fears the change in their family. Before Margot leaves, she breaks up with her long-term boyfriend, Josh Sanderson, who is also Lara Jean's childhood friend and secret crush. After Margot departs, Lara Jean's world changes when she finds that the box with her five secret love letters, written to boys she's loved and never meant to send, is gone from under her bed. She then learns the letters have been mailed.
Confrontations and a Faked Relationship
The first letter recipient to talk to Lara Jean is Peter Kavinsky, a popular lacrosse player and one of her middle school crushes. He approaches her at school with the letter, and a embarrassed Lara Jean faints. Later, at the school bonfire, Lara Jean is confronted by Josh Sanderson, Margot's ex-boyfriend and another letter recipient. To avoid an awkward talk with Josh and to make Peter's girlfriend, Gen, jealous, Lara Jean impulsively kisses Peter. This act leads to a suggestion: Peter proposes they fake a relationship. Peter wants to make Gen jealous and get her back, while Lara Jean wants to convince Josh and everyone else that she is over him, diverting attention from her true feelings for Josh and preventing further embarrassment from the letters.
The Terms of the Agreement
Lara Jean and Peter make their fake relationship official with a contract, outlining rules. They agree to go on dates, act like a couple in public, and keep up the illusion until Peter can win Gen back and Lara Jean can convince Josh she's moved on. They start spending time together, going to school events, and sharing car rides. At first, Lara Jean finds Peter's energetic personality and popularity overwhelming, but she slowly starts to see past his outer image. Their interactions, though planned, begin to feel natural. They talk about their families and past relationships, blurring the lines between their agreement and real friendship. Lara Jean also struggles to keep the secret from her family, especially Kitty, who likes her sister's 'new' boyfriend.
Family Life and Growing Bonds
While keeping up the fake relationship with Peter, Lara Jean continues her role as the family's 'mom,' caring for Kitty and their father, Dr. Covey. She bakes, cooks, and handles household chores, a role she took on after her mother's death. Her father, a gynecologist, starts dating Trina Rothschild, a family friend and neighbor, a change Lara Jean finds both unsettling and interesting. Peter's presence in Lara Jean's life also extends to her family. He sometimes picks her up from home, and Kitty quickly likes him. Their bond grows through shared experiences, like the school carnival, where Peter wins Lara Jean a large stuffed animal, and a class trip, where they share moments that make Lara Jean question their feelings.
The Ski Trip and a Real Kiss
The school ski trip becomes an important moment for Lara Jean and Peter. They share a hotel room with friends, and the closeness makes their interactions more intense. Peter shows real care for Lara Jean, comforting her when she feels overwhelmed and defending her from Gen's subtle digs. During a truth-or-dare game, Peter shares details about his past with Gen, and Lara Jean shares personal things. Their connection becomes clear. One evening, alone in their room, they share a real kiss, completely blurring the lines of their fake agreement. Lara Jean is confused and excited, unsure if this means Peter's feelings for her are real or still part of the act.
The Hot Tub Incident and Aftermath
During the ski trip, Lara Jean and Peter, with friends, go to the hot tub. While there, someone secretly records them kissing and playing. This video is later posted online, causing widespread talk and embarrassment for Lara Jean. The incident causes much distress, as she feels exposed. She confronts Peter, who is also upset but doesn't fully understand how humiliated she feels. The trust between them is broken, and Lara Jean questions Peter's intentions and whether he respects her. The video, though it seems innocent to some, shows Lara Jean's deep worries about public opinion and her private life being exposed.
The Fallout and Peter's Apology
After the hot tub video, Lara Jean pulls away, feeling hurt and betrayed. The video becomes a topic of gossip at school, making her uncomfortable. She distances herself from Peter, struggling to balance her feelings for him with her anger and humiliation. Peter, seeing how much pain she is in, tries to apologize and explain. He tries to assure her that the video was not his doing and that his feelings for her were becoming real. He defends her against the rumors, showing a more protective side. Despite his efforts, Lara Jean remains cautious, unsure if she can trust him or if their relationship, fake or real, can recover from such a public event.
Confronting Josh and Other Letters
Amidst the drama with Peter, Lara Jean also deals with Josh. His receiving of her love letter has created tension, especially with Margot away. He expresses confusion and concern for Lara Jean, but their relationship is changed. Lara Jean realizes that Kitty, trying to help her sister find love and perhaps get over Josh, mailed the letters. While initially angry, Lara Jean understands Kitty's innocent intentions. She also gets a visit from John Ambrose McClaren, another letter recipient, which brings back old memories and adds more complexity to her love life. This meeting reminds her of other boys she's loved and the path her life has taken.
A Real Letter and a New Chapter
After much thought, Lara Jean realizes her feelings for Peter are no longer part of a fake agreement. She genuinely cares for him and wants a real relationship. She talks to Peter one last time, expressing her hurt over the video but also admitting her true feelings. Peter, in turn, says his feelings for her grew during their fake relationship. Inspired by her original way of expressing love, Lara Jean writes a new, heartfelt letter, this time to Peter Kavinsky, not as a secret crush, but as someone she truly loves. She gives him the letter, showing she wants to move forward with an honest relationship, leaving the 'fake' behind.