A renowned pianist with a paralyzing case of stage fright, after a disastrous performance five years prior, makes his highly anticipated return to the stage. Plagued by the memory of his deceased mentor and the weight of critical expectation, he prepares to perform an extremely challenging piece that he had previously played when his career faltered. As he takes his place at the grand piano in a packed theater, the stakes are high, and his comeback performance is poised to be either a triumphant return or another crippling defeat.

As the pianist begins to play, he discovers a threatening message written on his sheet music: if he plays a single note wrong, a sniper will kill him. Trapped in a terrifying situation, he must continue with the concert, all while trying to figure out how to escape the deadly ultimatum. The unseen adversary forces him to engage in a high-stakes game of cat-and-mouse, communicating through an earpiece and compelling him to execute the perfect performance. The tension escalates with each keystroke, as the pianist's skill is the only thing keeping him alive, but even a flawless performance might not be enough to save him.