Gossip Girl's November 14 Episode Set at Sleep No More
The interactive entertainment piece, created by the British company Punchdrunk, is loosely inspired by Shakespeare's Macbeth.
"We like to do a masked ball every year, and this just dials it up so many notches," Gossip Girl executive producer Josh Safran told EW.com. "We were very much attuned to keep Sleep No More's secrets. At the same time, they were also really helpful in letting us utilize stuff that they maybe normally wouldn't. We shot there for two days -- several of the rooms, different floors."