Kevin McCormick's problems with music are about to approach a whole new level. Having developed an aversion towards music since high school, he has gone to extremes to achieve a lifestyle that is as devoid of song as possible. His world unravels when he becomes afflicted with Musica Chorea: an extremely rare dancing disease that he shares with only two other people in the entire world and of which only eighteen other cases have ever been documented. Once infected, his body dances-spontaneously, unpredictably, uncontrollably-whenever he hears music. It threatens to destroy his sanity as well...