The Outer Limits: Season 2, Episode 12

Keeper of the Purple Twilight (5 Dec. 1964)

TV Episode  |  TV-PG  |   |  Fantasy, Horror, Sci-Fi
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Ratings: 7.2/10 from 129 users  
Reviews: 6 user | 1 critic

A driven scientist is approached by a unearthly being who offers to exchange his alien intelligence in return for the experience of human emotions. Their experiment however has unforeseen ... See full summary »


(as Charles Haas)


(teleplay), (story), 1 more credit »
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Title: Keeper of the Purple Twilight (05 Dec 1964)

Keeper of the Purple Twilight (05 Dec 1964) on IMDb 7.2/10

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Episode complete credited cast:
Prof. Eric Plummer
Gail Kobe ...
Janet Lane
Curt Conway ...
Franklin Karlin
David Hunt (as Edward C. Platt)


A driven scientist is approached by a unearthly being who offers to exchange his alien intelligence in return for the experience of human emotions. Their experiment however has unforeseen consequences for both of them and soon a team of alien enforcers has arrived to destroy both of them and the scientist's wife. Written by Gazhack

Plot Summary | Add Synopsis





Release Date:

5 December 1964 (USA)  »

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Technical Specs


Sound Mix:

Aspect Ratio:

1.33 : 1
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Control Voice: [Opening Narration] There is no limit to the extension of the curious mind. It reaches to the end of the imagination, then beyond into the mysteries of dreams, hoping always to convert even the dreams into reality, for the greater well being of all mankind.
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User Reviews

Don't Get Emotional!
19 January 2015 | by (United States) – See all my reviews

This is one of those episodes that require us to accept an alien force that has capabilities to withdraw sense from a human. It's one thing to be a vanguard for populating another world (much science fiction and especially The Outer Limits hangs on this possibility. When the alien come to the desperate scientist, who is on the verge of a nervous breakdown, one can understand that he would do what he could to gain access. But the fact that an interplanetary culture has no knowledge of emotions but has the ability to absorb someone else's, makes everything more fantasy than sci fi. The story is a pretty good one. Ikar comes from a beehive culture, not unlike the Borg from Star Trek: The Next Generation. Every entity has his or her own purpose. When he ingests the emotions of the scientist and goes about testing out his newfound toys, it becomes really sort of silly. I decided to let that go and evaluate the story as presented. It is suspenseful and interesting and maintains the attention. It is heavy handed with a kind of human proselytizing, showing how superior we really are. Television in the sixties couldn't seem to shake this sermonizing.

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