Castle, Season 2

[After learning where Mistress Venom worked]

Beckett:
[On the phone] Hi, my name is Kate, and my boyfriend has been a very bad boy. [Castle smirks] Yes, that's right. His name's Ricky.

Castle:
What're you doin'? [Chasing after Beckett who is still on the phone]

Beckett:
Actually, a friend of mine recommended a Mistress Venom - is she available tonight? 4pm? Sure, that's perfect, thank you.

Castle:
OK, that's very funny, now call her back!

Beckett:
Uh-uh Castle, this is the perfect way to get Venom without tipping our hand. [Starting to walk away and turns around] What's the matter Castle, you afraid of a little role play? [Smirking]

Castle:
Yeah, you better run!