The torn photograph supposedly of Walter and Kay Wesley was actually a publicity photo of Sandy Dennis and Bel Kaufman from her days on the set of Up the Down Staircase (1967).
This episode is unique in that Edward Woodward is absent for the first 15 minutes. In that time the four guest actors, Stephen McHattie, Brad Dourif, Barry Primus and Sandy Dennis are the main players.
This episode contains three actors who would later appear in episodes of The X-Files; Stephen McHattie (Nisei and 731), Barry Primus (Shadows) and Brad Dourif (Beyond The Sea).