Season 2 Episode 16

The Mistress Always Spanks Twice

Aired Monday 10:00 PM Mar 08, 2010 on ABC



  • Trivia

    • When Castle and Beckett are going into the dungeon to interview Mistress Venom, Castle says, "My safe word is 'apples'". In Season 1 Episode 1 "Flowers For Your Grave", when Castle is being arrested he uses the same line "Ooh! Bondage. My safe word is "apples".

    • Detective Ryan's girlfriend Jenny is played by Juliana Dever, Seamus Dever wife in real life.

  • Quotes

    • Castle: C'mon! Haven't you ever wanted to do something with your handcuffs other than arrest criminals?
      Beckett: No. But there is one hot, wild, kinky thing that I do like doing...(Castle looses his grip on the table he's leaning into) Putting killers behind bars!

    • Castle: Is that honey?
      Lanie: For the smell of it I would say is caramel sauce, but I'd be testing not tasting.

    • Castle: Maybe our killer has a sweet tooth.
      Beckett: Given the state of undress I would say it's more likely a sexual fetish.
      Lanie: I can do the chocolate. I will even do the whipped cream bikini, but caramel? I prefer slippery to sticky.
      Castle: (To Ryan) Does she know we can hear her?

  • Notes

    • International Episode Titles:
      Czech Republic: Domina vždy plácne dvakrát (Dominatrix Always Slaps Twice)

    • Featured Music:
      "Patterns" by Band of Skulls
      "Standalone" by Ghost In The Machine
      "Save Me" by Carnaby
      "Super Conductor" by Beautiful Small Machines
      "Asphyxia" by Noirhaus
      "Red Lips & Fingertips" by The Come Ons
      "Picture Perfect" by Lindsey Ray

    • Original International Air Dates:
      Canada: March 8, 2010 on 'A'
      Australia: April 11, 2010 on Channel 7
      Slovakia: December 7, 2010 on JOJ
      United Kingdom: January 19, 2011 on Alibi
      Germany: January 28, 2011 on Kabel Eins
      Finland: February 6, 2011 on Nelonen
      The Netherlands: February 10, 2011 on SBS 6
      Czech Republic: March 16, 2011 on Prima

  • Allusions

    • This episode's title is a play on The Postman Always Rings Twice, a classic 1934 crime novel which was later adapted into several movies and other stage performances.