Beryl Fishen and Nadine Rodd, two “women of a certain age,” live in a Colorado retirement community. After attending a performance at a local theater, Beryl mistakenly receives the wrong coat. An initial search of the pockets reveals only scraps of paper, but a closer examination leads Beryl to suspect the tattered garment was purposely swapped for her much newer wrap. Furious at the injustice and temerity of the act, Beryl enlists Nadine’s help. Armed with the clues found in the coat—a grocery list, a library slip, a fast-food receipt and several candy wrappers—the two widows hunt for a thief and catch a killer.