help identify movie

hello,

i'm looking for a film from ca. 1996 in which a rich woman has a sort of paranoia about having some disease, locking herself in in her suburbia house, it's probably a parable about HIV, or something. can't remember the title. but I believe it's a 4 to 6 letter word starting with 'D'.

kthx!

k found it: http://www.imdb.com/title/tt0114323/

someone told me it's good.

Even if it ends up being bad Julianne Moore is nice on the eyes