This is one of the several episodes from the series that proves, to the characters, the factuality of urban legends and supernatural phenomena. Other episodes include:
"A Portrait for Troian" (ghosts) from Season Two, as well as
"Temptation Eyes" (psychics),
"Ghost Ship" (The Bermuda Triangle) and
"It's a Wonderful Leap" (angels) from Season Four, and
"Star Light, Star Bright" (UFO's),
"Blood Moon" (vampires) and
"The Beast Within" ("Bigfoot") from Season Five.