Pyscho Clan, the producers of Nightmare, one of New York's most horrifying haunted houses, will present Nightmare (Before Christmas): The Experiment, Off-Broadway at the Los Kabayitos Laboratorio at the Clemente Soto Velez Cultural Center, December 9-23.

The event was originally part of this year's haunted house as a second attraction, but due to its popularity, it has been expanded and will return for the Christmas holiday in an attempt to amplify the effects of its previous installment.

For tickets and more information, click here.