This is a very original and adventurous episode of the Twilight Zone. Based on a short story published just a year before airing, the teleplay comes together quite well. Of the three episodes that aired on this particular date, "Nightcrawlers" is clearly the best of the three.
Vietnam flashbacks are a uniquely 1980's phenomenon. This kind of story wouldn't have been possible on the original Twilight Zone, just by the nature of when this series aired. For that reason, it's a relevant episode.
This "it was a dark and rainy night" story is a fresh twist on the old genre. Very well done.