The secret, unofficial marriage of the Duchess (Janet McTeer) to her household steward, Antonio, is a charmingly amorous affair rather than a fatal, erotic passion, defying class barriers and conventions. You could not tell they come from different rungs on the social ladder. Charles Edwards's placid Antonio is too stiff and solid to be the ambitious homme fatale who would plausibly induce Miss McTeer's handsome, inviting, statuesque Duchess to fall from grace.