When noted scientist John Vandam dies in the Orient, he leaves the guardianship of his eighteen-year-old daughter to his old friend Sandy Verrall. Sandy believes that Eliza is a little girl and so prepares for the arrival of a child. Displeased with the situation, Eliza decides to dress and act like a kid so that Sandy will tire of her and send her away. Eliza does everything she can to annoy Sandy, but when she detects that his fiancée Vera is only after his money, Eliza also discovers that she has fallen in love with her guardian. In an effort to expose Vera's avaricious nature, Eliza vamps Sandy's rich Uncle Gregory, whom Vera is also chasing. Sandy then realizes Vera's fickleness and his love for Eliza, and the two marry.