A Ghost Story for Christmas: A Warning to the Curious

A Warning to the Curious (Amazon Prime) is a 1972 supernatural drama produced by the BBC as the second instalment of its A Ghost Story for Christmas strand and was first broadcast on Christmas Eve. It is based on "A Warning to the Curious", a ghost story by British writer M. R. James. The story has nothing to do with Christmas but is part of a long-standing tradition of enjoying ghost stories during this season.

via YouTube:

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Some of our decorations predate me, having been Mother's and even my grandparents'.