The X-Files: 10 Overlooked Episodes That Are Secretly Classics

10. Tooms - Season 1, Episode 21

Despite coming so early in the show's run, 'Squeeze' is often singled out as one of the show's best, and most iconic episodes. And yet, despite how beloved Mulder and Scully's first encounter with Eugene Tooms is by fans and critics alike, its follow-up hardly gets a mention.

Not long after the events of 'Squeeze', this episode sees Tooms released from prison, much to the alarm and chagrin of Mulder and Scully. Wasting no time at all, Tooms begins to single out potential new victims, all the while Mulder attempts to stop him at every turn. Tooms eventually goes so far as to frame Mulder for stalking and assault, which gives him free rein to continue his murder spree uninterrupted.

It's a tense and exciting episode that culminates in a gooey and suspenseful chase through the inner workings of a shopping mall's escalator, that ranks highly amongst the show's best horror sequences.

'Tooms' is every bit as great as 'Squeeze' and helps to further cement Eugene Tooms as one of the duo's best adversaries. One who is capable of being both silently terrifying and deceptively clever all at once.