With Scully reassigned to the Quantico training acedemy, Doggett and Reyes investigate their first X-File together -- a series of satanic ritual murders whose victims may include the agents themselves.
original airdate--December 2,2001 rating--8.7 million
music--theme song "X-Files" by Mark Snow"
Goofs:Doggett suggests to Reyes the killer might use human flesh to fertilise his garden - an in-joke referencing the movie The Last Supper (1995/I), which starred Annabeth Gish.
Trivia: series co-star Robert Patrick had issues remembering and delivering his lines due to the theme of demonic possession, which reportedly "was freaking" him out. He later explained, "It was the first time that I couldn't do my lines. Usually I would show up, and they'd always put the camera on me first [but this time] I couldn't do it."