At an audition for a school play, Patty inadvertently steals the part of Cleopatra from Cathy, who becomes her understudy.
Meanwhile, Patty arranges for a Hollywood talent scout to view the play, but her plans are jeopardized when she develops laryngitis.
Cathy dutifully fills in for Patty, but Patty has other ideas after she makes a last-minute recovery.
