Shipwrecked Viola disguises herself as a boy and enters the service of duke Orsino and falls in love with him. Orsino sends his servant, Cesario (Viola in disguise) to woo the Countess Olivia on his behalf. Olivia can't love Orsina, but promptly falls in love with this servant, Cesario (Viola). Viola's shipwrecked twin brother, Sebastian, arrives on the scene creating chaos as it now appears that Cesario can be in two places at once. Will all the confusion end to everyone satisfaction?