Mona Moon and her new husband, Robert Farley, Duke of Brynelleth are on their honeymoon at last. They are invited to a weekend party by an old friend of Robert’s family—Lady Eustacia. Mona and Robert arrive in a substantial downpour to find several other couples awaiting the appearance of their hostess. When Lady Eustacia fails to come downstairs, Mona and Robert search the manor house only to find her bedridden, drugged, and in serious need of a doctor. It is then they discover the telephone wires have been cut and none of the cars are able to drive into town due to the storm. Mona and Robert believe the invitation was a ruse, but for what purpose? And how do they help Lady Eustacia?
