Supernatural (2005– )
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On the Head of a Pin 

Castiel and Uriel ask Dean to torture Alastair for information. But when Alastair breaks free, Castiel starts to believe that there is a traitor among the angels.



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Episode cast overview:
Ruby (as Genevieve Cortese)
Brent Woolsey ...
Crystell Hendricks ...


Uriel and Castiel forcibly recruit Dean to torture the captive Alastair. They need to find how, who or what is killing angels as one of another 66 Seals in which both Dean and his former captor play mind games against each other to break one another down. Sam is forced to call upon Ruby to help him find Dean before he emotionally cracks, while the rouge angel, Anna Milton, also returns to ask Castiel where he stands on his position as an angel of the Lord - does he obey all heavenly rules without question? Written by matt-282

Plot Summary | Plot Synopsis






Release Date:

19 March 2009 (USA)  »

Company Credits

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Technical Specs


Sound Mix:


Aspect Ratio:

1.78 : 1
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Did You Know?


While Dean is torturing him, Alastair remarks, "It's your professionalism that I respect." This is the same line used in Little Shop of Horrors, spoken by the dental patient in response to the sadistic dentist who is trying to cause him pain. However, the dentist didn't know that the patient was a masochist who was enjoying what the dentist was doing. By referencing this, Alastair may have been trying to indicate that Dean's torture attempts were not having the desired result. See more »


Alastair: [laughing at Dean] I'm sorry. This is a very serious, very emotional situation for you. I shouldn't laugh. It's just that, I mean, are they serious? They sent *you* to torture *me*?
Dean Winchester: You got one chance. One. Tell me who's killing the angels. I want a name.
Alastair: You think I'll see all your... scary toys and spill my guts?
Dean Winchester: Oh, you'll spill your guts, one way or the other. I just didn't want to ruin my shoes.
See more »


References Little Shop of Horrors (1986) See more »

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User Reviews

Best. Episode. EVAH.
29 March 2009 | by (Australia) – See all my reviews

I had to do a little dance when it was over, I was so excited. This show has really come into it's own - season 1 was very "monster of the week", but since then, the backplots have been getting better and better. This episode significantly advances the angels' storyline, answering some maddening questions I've had this year. Astute (and obsessed!) fans will note that it answers some older questions as well. We see a side of Dean which many would prefer not to speculate about. The cinematography this season has been amazing, particularly when the angels are around. Some great examples of that this episode. The beautiful and talented Julie McNiven was back this week, kindling hopes that she will be around in the long run - hooray!

29 of 34 people found this review helpful.  Was this review helpful to you?

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