A reckless concertmaster, a determined conductor, and a priceless violin turn Andy Veracruz into a substitute soloist, but being a soloist is the easy part! At his first concert, a patron is found dead and a musician flees the scene. The orchestra nearly falls to pieces, but Andy takes control. Impressed with his quick thinking, the conductor recruits Andy for a European tour to secretly chase after the missing violinist. Andy relishes the challenge, but at every step he imagines that his girlfriend will discover and expose his double purpose. Worse, despite all the hours spent rehearsing, how will he explain himself when his fellow musicians realize that he's a fraud?