A Missouri summer moon illuminates two unlikely lovers in 'Talley's Folly' by Jeffrey Borak
As played by Mark Nelson and Kate Jennings Grant in director Anders Cato's shimmering production at the Berkshire Theatre Festival, their dance also is breathtakingly graceful and elegant, executed by two people -- walking wounded -- who would, on the surface, seem to be the least likely couple. By the time their dance ends, however, it is clear that Matt and Sally are as natural a pair as Fred Astaire and Ginger Rog…