Episode Description: Beware, spoilers! To read - hover over the text.
When castle and Beckett investigate the murder of a man with human bite marks on his body, castle's wild theories start flying. But none of them is as wild as the one which insists their only witness: what happened to the zombie attack. Because the evidence pointing to inanimate opponent, accumulate, the team plunges into the zombie subculture of new York to find the killer and bring it into a state — dead, not dead, alive.