A young woman with a great voice and a passion for music lives a quiet life in small-town America with her sister, Kimber, and their two foster siblings. After the death of their father, a talented inventor, they struggle to make ends meet. The protagonist finds a mysterious earpiece among her father's belongings, which creates spectacular holograms that augment her stage persona. Inspired and encouraged by her sister, she uploads a video of her singing to the internet, where she performs anonymously under the alias given by her father. The video goes viral overnight, attracting the attention of a major music producer who promises fame and fortune.

Lured by the dazzling prospects of stardom, she and her sisters move to Los Angeles. The journey transforms them from a close-knit family band into "The Holograms," an overnight sensation in the music world. However, the music industry's glamorous facade quickly begins to crack, revealing the challenges and pressures of fame. As the protagonist navigates her new life, she confronts the realities of fame, the commercialization of her music, and the threat of losing her identity. Alongside, she embarks on a quest set forth by clues left by her father, leading to a discovery that could change her life and her understanding of family, love, and true success.