Beckett, Ryan and others in “Undead Again”

Beckett

He won’t leave?

Ryan

Charlie’s pretty convinced about this whole zombie thing.

Beckett

Yeah, but that’s just… That’s ridiculous.

Castle

Or is it? Charlie has not been wrong yet. Maybe our killer is Patient Zero, out there right now in the streets of New York, building an army of the undead.

Beckett

Castle, what we are looking for is not a zombie, but a very smart criminal who murdered David Lock and is now making our only witness look crazy. And he also dressed up in makeup and a costume to hide his identity.

Castle

Unless that’s not costume or makeup.

Ryan

I mean, he does look like a real zombie.

Esposito

A real zombie? I’m embarrassed for you, bro.

Beckett

Okay, then explain this. Why would a zombie go after a currency trader at 4:00 am in a garage?

Castle

This one’s easy. The more intelligent the victim, the more delicious the brains.