sentences:  The only one with any drive or ambition is Gertrude's husband Frank Vicary, and all of his time is absorbed by the task of running the family business.When a murder rocks their local community, no-one has any reason for suspecting one of the Beales, until Wycliffe arrives on the case and finds his investigation leading him up the Beales's garden path.The reclusive writer David Cleeve has been receiving mysterious warnings in the form of a single playing card; the Jack of Diamonds.