Hey guys, this is a real hard one I think. I saw it in the early eighties, It was about a family eating breakfast I think and their little girl starts choking on an apple. So the mom cuts her throat to save her but kills her. I can't remember the rest.

I haven't seen this one, but maybe Full Circle (1977) (http://www.imdb.com/title/tt0074611/)

You're welcome.