Season 4 Episode 14

The Blue Butterfly

Aired Monday 10:00 PM Feb 06, 2012 on ABC



  • Trivia

  • Quotes

    • Castle: (talking about what he read in the journal about the secret safe) It happened backstage, right upstairs. They were stealing a moment together, which was dangerous because she was Dempsey's girl. As they stared into each other's eyes, Kate's heart quickened...
      Kate: Did you just say Kate? Are you picturing the PI as you and me as a gangster's moll?
      Castle: What?! No! And I didn't say Kate, I said fate. Fate's heart quickened. I was being poetic. God. Anyway...

    • Beckett: And?
      Castle: And...that's it. That was the last entry in the diary.
      Beckett: What do you mean, that's it? What happened to Joe? What happened to Vera?
      Castle: I don't know.
      Beckett: Well, why would you tell a story when you don't know the ending?
      Castle: If you wanted a beginning and a middle and an end, I have 27 novels you can choose from.
      Beckett: Ugh!

    • Castle: Um, Beckett? Can I take this home for the night? I mean, it might be the key to what Stan was looking for.
      Beckett: You just want to read it because you think it's cool.
      Castle: Yeah, well, that, too.

  • Notes

    • Featured Music:
      "Comes Love - Unreleased" by Tamala Jones - Arranged by Robert Duncan (Betsy Sinclair (Lanie) belts out this version in the Pennybaker Club via a 1947 flashback, Joe (Castle) watches Betsy sing, backstage at the club as Joe & Vera talk while Betsy & band are heard in background)
      "I Can't Give You Anything But Love " by Louis Armstrong (victrola plays this song in Jerry's apartment, in the club with Louis Armstrong performing, back to apartment)

    • Original International Air Dates:
      Canada: February 6, 2012 on CTV 2
      Australia: May 6, 2012 on Channel 7
      United Kingdom: June 6, 2012 on Alibi
      Germany: September 28, 2012 on Kabel 1
      Czech Republic: December 5, 2012 on Prima family
      Serbia: January 5, 2013 on FOX

    • International Episode Titles:
      Czech Republic: Pípad lovce poklad (Case of the Treasure Hunter)

  • Allusions

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