Global superstar Celeste loses her in-ear monitor mid-livestream; the only voice that reaches her ear is backup engineer Rhea's emergency private line. Thirty days on tour bind them into one monitoring system, and a dangerous attraction grows out of technical dependence. When an eight-second whisper leaks, the label tries to turn the relationship into a marketing asset; Rhea kills the private line and traces the access, while Celeste shoulders a million-dollar loss to protect her. After a sudden vocal injury and a love finally declared, Rhea still files her own conflict-of-interest report. At the finale, with every monitor dead, Celeste sings a cappella—choosing not the song, but her.
