The film opens with a chaotic scene at a wild rock concert where the atmosphere is charged and the audience grows increasingly restless. The tension peaks when a child goes missing and flames are set off by some spirited fans, leading to an uproar. The headliner, John Norman Howard, stumbles drunkenly onto the stage, only to forget the lyrics midway through his performance, provoking him to insult the very crowd that came to see him. Disillusioned, he storms off the stage, leaving behind a trail of chaos.

In the aftermath, John’s entourage, including Bobbie Ritchie, frantically urges him to temper his erratic behavior while driving away from the scene. Bobbie, as usual, tries to numb John’s anxiety with cocaine, and another band member proposes a risky adrenaline boost. Despite their concerns, John defiantly proclaims his desire to go out, leading the group to a bar where Esther Hoffman is performing her own songs. Under the pretense of enjoying the music, he attempts to keep his whiskey hidden, grappling with the bar’s strict no-alcohol policy. However, Esther takes it upon herself to protect him, allowing him to drink as long as he remains respectful during her performance.

Soon, John’s fans intrude on their solitude, leading to a disastrous confrontation that prompts Esther to intervene for John’s sake. Amidst the turmoil, she cleverly orchestrates an escape through a back door into John’s car. On their way back to her place, John invites Esther to the concert that afternoon, and she accepts, riding alongside him in his helicopter.

At the concert, John’s attention shifts to making Esther a star. An unexpected fan encounter leads to a chaotic scene as John takes a motorcycle onstage, only to crash spectacularly and incite a riot. Abandoned by his crew, he is taken to the hospital while Esther is left behind in the disarray.

Once John’s body mends at home, he unwittingly draws attention to himself when Bebe Jesus, a radio DJ, interrupts his solitude with an overly loud aerial advertisement. The tension escalates when John vents his frustrations and even resorts to shooting at the helicopter, prompting Bebe to retaliate by vowing to erase John’s name from his airwaves. The fallout continues as John attempts to amend things by visiting the radio station, only to be publicly humiliated by Bebe on air.

Fate intertwines as Esther happens to be at the station, leading to a chance meeting fraught with mixed feelings. Their relationship deepens as John becomes increasingly supportive of Esther’s artistic ambitions, lending her equipment and resources. As she takes ownership of her craft, they find joy in their shared love for music. However, John’s neglect for his own career begins to weigh heavily on their relationship, causing tension as he is pressured into performing at a charity event.

During the concert, John surprises Esther by arranging for her backup singers to join, leading her to face a hostile audience that she ultimately wins over, showcasing her undeniable talent. Their relationship takes a turn when they hastily marry, but as John’s reckless behavior spirals out of control, Esther’s career skyrockets. Estranged emotionally, John harbors jealousy, resulting in conflict as he continues to codependently engage in self-destructive activities.

The turning point occurs when a drunken John interrupts Esther’s acceptance speech at the Grammy Awards. His disregard for their situation manifests when he confronts the audience, leading to a chaotic exit that further unfolds their tumultuous dynamic. With tensions running high, Esther embarks on her own tour while John struggles with feelings of inadequacy and rejection.

Ultimately, unsatisfied with his old band, John attempts to forge a new path, only to discover that they have moved on without him. Facing emotional turmoil, he retreats into alcohol, leading to an ill-fated car crash that ultimately proves fatal.

In the quiet aftermath of John’s sudden death, Esther is left grappling with immeasurable loss and memories of their tumultuous relationship. As she copes with her grief through performance, the audience pays homage to John, illustrating his enduring impact on her life and their shared love through music. The emotional resonance of their journey culminates in a powerful tribute as Esther transforms the heartache into art, finally singing John’s song with newfound passion and depth, honoring his legacy in a way only she can.