When the unseen "Mr. Marrable" dies, his widow (Geraldine Page) finds that her husband's death has left her broke so she must find means to continue to thrive. To that end, she invites a succession of older ladies, widows and spinsters mainly, to come and be her companion at her desert home. Over time, each one disappears just as a nice new conifer appears in her garden. Ruth Gordon ("Mrs. Dimmock") - the eponymous…