Mary Fisher (Meryl Streep) has got it all: a villa overlooking the ocean, a very satisfying career as a romance novelist...and Ruth Patchett's husband. And when Ruth (Roseanne Barr) finds that her unfaithful spouse Bob (Ed Begley, Jr.) has been spending time at Mary's monstrosity-by-the-sea, she doesn't just vow to get him back...she proves the old adage about a woman scorned and vows to get even!