Prince Heinrich Dagobert has a weakness for the opposite sex, which his wife, Rosemarie, isn't exactly happy about. While the prince invites both men and women to his castle, Rosemarie tries to uncover her husband's true intentions incognito. There, she meets Herbert von Waldendorf, with whom she falls in love. Then there's the bird dealer Adam, who has his worries about his fiancée, Christel von der Post...