In 1982, Viktoria Mullova was the USSR's violin sensation, winning the gold in the Tchaikovsky Competition. In 1983, she left her state-owned Stradivarius in her hotel room in Finland, donned a blonde wig to throw off her KGB minders, and escaped to Sweden. In the 31 years since, she's become known as one of the world's greatest violinists - and one who regularly crosses artistic borders. She has just re-recorded the Bach concertos, and this time she plays a Baroque violin. Sparks fly.