An ailing Sherlock Holmes travels under doctors orders to Cornwall for a period of rest and convalescence. Dr. Watson accompanies him intent on ensuring his friend follows orders but they are soon approached by the Reverend Roundhay to help solve a most perplexing incident. A young woman, Brenda Tregennis, apparently died of apoplexy while playing cards with her two brothers, George and Owen who are now suffering from some type of dementia. There are wild rumors going about the village including that the incident was a supernatural phenomenon. Holmes believes there is a far more grounded explanation and with the help of a surviving brother, Mortimer Tregennis, tries to determine who would want them dead. Written by garykmcd