Ronald Reagan plays a George Petty-type magazine illustrator who creates a "perfect girl" from a composite of the features of several models. While relaxing at the beach, Reagan meets a lovely young schoolteacher (Virginia Mayo) who is the living image of his imaginary girl. Sensing a terrific promotional angle, Reagan ingratiates himself with the girl and attempts to secure her services for a series of cheesecake poses. The film leads to a courtroom conclusion wherein Mayo must strut around in a bathing suit to win her case. Girl from Jones Beach is worth the admission price alone just to hear Ronald Reagan pose as a Czechoslovakian immigrant--complete with accent.