Stolen Voice follows Mara Quinn, a talented plus-size understudy singer betrayed by her fiancé Derek and rival Tessa. On her debut night, her gown rips; Derek replaces her with Tessa, who secretly lip-syncs to Mara’s stolen vocal tracks. New theater owner Julian Vale notices the fraud. Haunted by his mother’s similar tragedy of being erased onstage, he chooses to stand by Mara.
Mara struggles with weight loss and self-loathing while training tirelessly to reclaim her voice and confidence. Julian accompanies her through every tough moment, healing her trauma over broken zippers and body shame. As Tessa and Derek keep humiliating Mara, Julian and staff gather solid evidence of audio theft.
On opening night, the truth is exposed to all. Mara takes the stage draped in her mended torn dress, delivering a powerful live performance. Her name tops the cast bill. With her abusers banned from the theater, Mara gains the stage—and Julian’s sincere love.