The K Files continues our deep cover investigation into the most disturbing serial killers on The X Files with the origin of death fetishist and likely demon, Donnie Pfaster in Irresistible.

Enter Donnie Pfaster - the Cool Hand Luke of TXF Rogues' Gallery. It's a harrowing introduction for the character which feels like an early premonition of what was to come on Chris Carter's other Fox series, Millennium" the tone is pretty grim, in that way. Donnie is a death fetishist who begins kidnapping and killing living women to satisfy his hunger for remnants of corpses - hair, skin, nails. It's a tough case to stomach for virtually everyone but Mulder, who takes Pfaster's predilection in stride pretty handily.

Scully in particular has a tough time seeing women's bodies debased after her own recent abduction: it's a grim reminder via her experiences of how women's bodies are frequently in danger on the show. For Scully, it's a very real fear that the sacred miracles that she and other women conduct is not enough to combat the base evil of a monster like Donnie. The character of Pfaster was eventually brought back in the season seven episode "Orison" - during which Scully has to enact some biblical justice on his demon ass. We'll have that investigation for you next week!