A mystery disease takes most of the human race -- except for some women and the even fewer men. While it touches on the politics and the efforts needed to restore a semblance of society, this is a slice of life story of Vic. It follows her life post-event in finding others, her relationships, and her joining into her place in the new society.
The viewpoint is narrowed to the narrator, and of her concerns; not so much with the wider event, or even what is happening to those around her for whom she does not directly care. It focuses on her relationships and worries -- the women she loves, finding a new home, and finding new friends. It rings true, even if somewhat thinly sketched at times (in a short novel) of what someone's concerns may be within their new reality.