I started reading a book that I cannot remember over 20 years ago. I was young so my memory of the book is probably off.
The start of it was a man or woman that was going to visit home for a funeral or holiday. When she got to the town there was a fog looming and the town was deserted I think. I remember there being a part where she went into a home and there was a family sitting around a table all dead with a man sitting at the head of the table with a shotgun.