Castle 2011 Spoilers: Tonight’s Halloween-Themed Episode Features A Ghost Hunter’s Murder

Tonight’s episode of Castle on ABC is Halloween-themed as a ghost hunter is killed under strange circumstances.

“What we’re dealing with is a murder inside a old, locked haunted mansion, where the only way somebody could have killed this guy was is if they were not of this world — if they were from the other side,” said series creator Andrew W. Marlow. “So we get to investigate and have a lot of fun with that.”

Castle apparently believes the murderer is an apparition while Beckett doesn’t concur (obviously).