I'm looking for a movie shown on HBO in the early 1980's. Where a young writer and some friends go to an old house she he can finish his novel. Then the friends one by one go missing. The movie ends with the audience finding out that the writer was actually only writing his book and none of the horror actually took place.

Possibly House of the Long Shadows (http://www.imdb.com/title/tt0085693/)

Possibly House of the Long Shadows (http://www.imdb.com/title/tt0085693/)

Thanks Quinn F. I kept thinking it was House of something, but just couldn't remember. :D

You're welcome.