The movie is about a couple who purchase an old estate. She has a fireplace opened that was bricked up. Then these creatures start stalking her and she thinks she is losing her mind. There is a scene where she is in the shower and try to kill her, another scene where they are having a dinner party and the creatures keep pulling her napkin off her lap and she finally looks under the table and sees them. They seem to always be calling her name and her name may be part of the title of the movie. I think they eventually take her away through that fireplace
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Don't Be Afraid of the Dark (1973) (http://www.imdb.com/title/tt0069992/)

That's the one, thanks adolf_hilfiger!