Solène, a 40-year-old single mom, begins an unexpected romance with 24-year-old Hayes Campbell, the lead singer of August Moon, the hottest boy band on the planet.
Solène (Anne Hathaway), a 40-year-old single mom, begins an unexpected romance with 24-year-old Hayes Campbell (Nicholas Galitzine), the lead singer of August Moon, the hottest boy band on the planet. When Solène must step in to chaperone her teenage daughter's trip to the Coachella Music Festival after her ex bails at the last minute, she has a chance encounter with Hayes and there is an instant, undeniable spark. As they begin a whirlwind romance, it isn't long before Hayes' superstar status poses unavoidable challenges to their relationship, and Solène soon discovers that life in the glare of his spotlight might be more than she bargained for.
Solène Marchand is a divorced art gallery owner living in Los Angeles. As her 40th birthday nears, she plans to go on a solo camping trip while her ex-husband Daniel takes their teen daughter Izzy and her friends to Coachella. When Daniel is called away by work at the last minute, Solène reluctantly agrees to forgo camping and accompany the teens to the festival.
Daniel had arranged for the teens to have a meet-and-greet at the festival with British boy band August Moon. While waiting in the VIP area, Solène enters what she believes is a bathroom, only to discover that it is August Moon member Hayes Campbell's trailer. The pair flirt, although Solène, who is sixteen years older than Hayes, is uncomfortable with their attraction. Later, during August Moon's performance, Hayes seemingly changes the show's stylist, dedicating a song to her.
At Solène's birthday party, she finds herself disillusioned with prospective men her age. Shortly after the festival, Hayes shows up unannounced at Solène's gallery, seemingly interested in purchasing art. After he buys every piece in the gallery, Solène takes him to a friend's warehouse studio, where they discuss life and art.
At Solène's house for lunch, she reveals her insecurities as a result of her ex-husband's affair, and Hayes reveals his desire to be taken seriously as a musician. They kiss, but Solène rebuffs him.
Hayes leaves his watch behind then, finding Solène's phone number on the gallery invoice, texts her to join him in New York City. With Izzy at summer camp, Solène flies to New York and meets him at his hotel where they have sex. Hayes convinces her to travel with him on August Moon's European tour. Solène wishes to keep their relationship private so does not tell Izzy or anyone else.
As August Moon's European tour goes on, Solène continues supporting Hayes, and the pair continues to be intimate in the hotels they stay in. When the band vacations in the south of France, Solène becomes uncomfortable about her age in relation to the other women traveling with them. Other members of the band tell her that Hayes's dedication of a song to her was a tactic they use to impress women, and that Hayes has previously pursued relationships with older women.
Solène, feeling misled and disillusioned about the relationship, abruptly returns to Los Angeles. Daniel, who has heard about Solène's relationship, questions her about it, but she denies that she and Hayes were together.
Soon afterward, paparazzi photos of the relationship surface online, causing Solène to attract large amounts of unwanted attention. When she goes to pick Izzy up at camp, her daughter is furious at having been lied to, but forgives her mother. Solène goes to a recording studio where Hayes is working, and they rekindle their relationship, beginning to date publicly. She and her family delete their social media accounts.
Daniel expresses concern to Solène about the impact of their relationship on Izzy, who is facing challenges at school as a result. Following a trip to New York, Hayes returns and Solène ends the relationship once more. However, Hayes visits her home again, suggesting that they should reconsider resuming their relationship in five years, once Izzy has completed her schooling. During this encounter, Hayes leaves his watch with Solène once again.
Five years later, with Izzy now living in Chicago, Solène sees Hayes performing on The Graham Norton Show, where he mentions plans to visit Los Angeles. He returns to the gallery, where they share a joyous, tearful reunion.