Gentlemen Don't Eat Poets

Sir Hugo is more interested in reconstructing dinosaur bones than in paying attention to his wife, Lady Harriet. He's not thrilled when daughter Cleo brings home her betrothed, Sidney, who aspires to be a poet. The new butler, Fledge, provides Lady Harriet with the attention she's been missing and then seduces Sidney. Did he have a role in Sidney's disappearance as well?