The story, which begins in an assisted-living facility in New Hampshire, leads to 18th century Boston and London, where there may be unfinished business that residents, through mirror selves, must take care of. As Abe, Mercy, and their friends come under the influence of forces they don't understand, they adopt antique attire, get drunk on two-hundred-year-old wine, and become experts in the lives of their other selves. In their alter egos, Mercy...