Richard Castle : I don't know, but I think it's time we found out.
Kate Beckett : Knock yourself out, Castle.
Richard Castle : You're not coming?
Kate Beckett : No, I've got a murder to solve.
Kevin Ryan : I'll go.
[Beckett stares at him]
Richard Castle : Ooh. That's a look.
Kevin Ryan : Yeah.
Richard Castle : I get these a lot. Just start walking. Faster.
Pete Benton : Matt had a terrible temper. He was convinced Melanie was cheating on him.
Kate Beckett : Was she?
Pete Benton : Wouldn't surprise me if she was. Matt thought it was somebody at work.
[cut to the precinct]
Kevin Ryan : It wasn't someone Melanie worked with. I just tracked down George Banner, Melanie's manager at Fly-wide Travel from 20 years ago. He said Melanie had two co-workers. Both guys.
Richard Castle : Uh-huh.
Kevin Ryan : Married.
Richard Castle : Still.
Kevin Ryan : To each other.
Richard Castle : Oh.