As Aunt Alice, Ruth Gordon applies for the job of housekeeper in the Tucson, Arizona home of widow Claire Marrable in order to find out what happened to a missing widowed friend, Edna Tilsney.
The crazed Page, left only a stamp album by her husband, takes money from her housekeepers, kills them, and buries the bodies in her garden.
Alice is a widow too.
So is neighbor Harriet Vaughn.
Lots of widows here.