In Quebec, Canada, Anglomard and Sylvette Dieu are a working-class couple raising 13 children in a crowded, tightly-knit household. Aline Valérie Lemercier, named after a Christophe song, becomes the 14th and youngest member of the family. The Dieux share a contagious love of music that seeps into every corner of their life, and that passion helps a once-timid Aline find her voice as she sings Mamy Blue at a family wedding for the first time. Aline confides to her mother that she dreams of becoming a professional singer, a dream Sylvette nurtures by guiding her daughter to create her first song with a helping hand from her eldest son, Jean-Bobin Dieu Antoine Vézina. The hopeful demo is sent to Guy-Claude Kamar [Sylvain Marcel], a record manager who has long admired one of the Dieux’ favorite singers; two weeks pass without a response, leaving the family to wonder if anyone will hear them. When the demo finally reaches him, Guy-Claude is struck by Aline’s extraordinary voice and asks to meet the family, setting the stage for a partnership that could transform their lives.
Aline releases her first albums and a string of hits, enjoying rapid success across her home province and in France. As she grows into young adulthood, she takes a much-needed break so her image and music can mature. During this period of renewal, she develops romantic feelings for Guy-Claude, a situation Sylvette notices with dismay given their significant age gap. She confronts him, bluntly warning that she will not tolerate any pursuit of a relationship that could complicate the family’s dynamics. After a European song contest victory in Dublin, Aline opens up about her feelings to Guy-Claude and the two pursue a private romance, a development that tests and ultimately thaws Sylvette’s initial resistance.
On a talk show, Aline performs Pour que tu m’aimes encore and faces probing questions about who the song is about. She tears up and chooses not to reveal the inspiration, letting the moment speak for itself. The couple’s bond deepens as Guy-Claude proposes to Aline while they are touring in Italy, and they soon marry with the Dieu clan by their side. The newlyweds begin attempting a family through IVF, but a serious throat injury during a performance of All by Myself leaves Aline unable to sing or even speak for about three months. The emotional and professional setback is stark, yet hope returns when she receives a demo of My Heart Will Go On and, after initial hesitation, agrees to record it with Guy-Claude’s encouragement. The partnership between music and love drives her forward, and she forms a creative bond with Fred, a French stylist who joins her team after a standout appearance at a movie awards show. Fred Jean-Noël Brouté becomes a trusted collaborator as her career expands across continents.
As IVF attempts continue, Aline welcomes her first son, Junior, followed by twins years later, cementing her status as an international superstar. Yet fame brings its own tensions: jokes from the media about her marriage to Guy-Claude, and a growing exhaustion from constant touring that makes her long for home and family life. The couple’s happiness is tested by grief when Guy-Claude dies after a battle with terminal illness. Aline copes with loss while navigating life in the spotlight, sometimes wandering Las Vegas unseen by passersby, and worrying about her next major performance. When the night arrives at a casino hotel, she arrives in the crowd as much as on stage, and delivers a stirring rendition of Ordinaire, a moment that returns her to the core of what first drew her to music: connection, resilience, and the power of a voice that can carry a family through both joy and sorrow.
The film also honors the quieter threads of Aline’s world: the support of her mother Sylvette, who evolves from a protective caretaker to a more nuanced ally; the familial backbone provided by Jean-Bobin [Antoine Vézina], whose early work helps shape the family’s dream; and the creative team that surrounds Aline, including her on-stage singing voice by Victoria Sio, lending a distinct tonal color to the performances that audiences remember. The collaboration among family, fame, and personal growth unfolds with a patient, observational tone, letting the human moments—small jokes in the press, tender family dinners, and late-night studio sessions—shine as brightly as the bigger, cinematic milestones.
Valérie Lemercier’s portrayal anchors the film with warmth and gravity, supported by the luminous, genre-spanning music that carries Aline from a small Quebec home to international stages. The result is a sprawling, intimate saga about a girl who becomes a global icon while never losing sight of where she began, and about a family whose love for each other endures through extraordinary challenges. The narrative respects the complexities of ambition and family loyalty, delivering a richly textured portrait of life in the spotlight, where every note carries the weight of memory, longing, and hard-won triumph.