A scene from “Flowers For Your Grave”

Rick Castle: You want to know why I killed Derrick? There were no more surprises. I knew exactly what was going to happen every moment of every scene. It's just like these parties. They become so predictable. "I'm your biggest fan." "Where do you get your ideas?"

Alexis Castle: And the ever popular, "Will you sign my chest?"

Rick Castle: That one I don't mind so much.

Alexis Castle: Yeah, well, FYI, I do.

Rick Castle: Just once I want someone to come up to me and say something new.

Kate Beckett: Mr. Castle?

Rick Castle: [turns and holds out his pen] Where would you like it?

Kate Beckett: Detective Kate Beckett, NYPD. We need to ask you a few questions about a murder that took place earlier tonight.

Alexis Castle: [takes pen from Castle] That's new.