The Duchess of Peacefield, Charlotte, is preparing for her wedding in 15 days to her chosen fiancé, the honest Martin Chambers. However, she hears rumors of his infidelity and finds him at his manor flying kites with another woman, Joanna, who claims to be his cousin. Charlotte confronts them, and Joanna provocatively reveals Martin spent the night making the kite for her. Martin confirms he invited Joanna and made the kite himself, showing the cuts on his hands. Charlotte's perfect plan for a reliable husband and a political alliance shatters as she witnesses his intimate effort for another woman on the eve of their wedding.