The X-Files/Recap/S01 E14 Gender Bender


 * Gender Bender - The episode's title is Exactly What It Says on the Tin. The aliens can switch genders at will.
 * Human Aliens - The monsters of the week look exactly like humans.
 * Living Aphrodisiac - The aliens themselves.
 * Sex of Death - The only real reason the aliens could be considered monsters at all. Sleeping with them is almost inevitably fatal to the human.
 * You Look Familiar - Nicholas Lea, who would go on to play Alex Krycek, appears as a would-be victim.