Maestro Daniel Abogado is a successful and sought-after conductor. His life is music, and his recent marriage to Elvira Torres, a talented cellist in his orchestra, makes him feel complete. Especially so, since they are awaiting the birth of his first child. But one day, Daniel interferes with a beating on the street. From then on, his blissful life is turned upside-down. Physical and psychological threats appear out of nowhere. When Daniel gets kidnapped, he's certain that he recognizes the voice of one of the attackers—the one the other thugs refer to as "the boss," but Daniel can't recall who the voice belongs to. After he gets released, the hunt for clues and voices intensifies. But can Daniel discover who is behind the voice before the boss gets tired of playing cat and mouse and decides to make good on this threats to end Daniel's life?