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Demons

While doing some investigative work at a New York mansion, a prominent ghost hunter is murdered. Castle and Beckett must figure out if paranormal activities are to blame.
Aired: Oct 24, 2011 Genre: Drama CrimeCasts: Nathan Fillion Stana Katic Molly C. Quinn Jon Huertas Seamus Dever Susan Sullivan Tamala Jones Penny Johnson JeraldCreated By: Andrew W. MarloweProducers: Rob Hanning Bill RoeDuration: 45m Rating: 4 Country: United States of America Production: Beacon Pictures, Experimental Pictures, ABC Studios