Murder, She Wrote S05E09 - Something Borrowed, Someone Blue

Jessica's nephew Grady Fletcher and his fiancée Donna Mayberry have decided to get married in the home of Donna's parents. With Jessica on the guest list, can murder be far behind? Not likely: This time the victim is Mr. and Mrs. Mayberry's fanatically fastidious housekeeper, who is "done in" with her own meat thermometer!