David Díaz did a 3 horror short stories in homage to The Simpsons (1989) Tree House Horror's episodes.
A sequel was planned for being released in 2007. The shooting begun on 2006, but David Díaz couldn't finish it and the project was canceled. This time was a 4 short stories movie. One of them was called "Postergay", a spoof of Poltergeist (1982). David used footage from that unfinished story and made a fake trailer for the "Teaserland Fake Trailer Festival" in 2009. Óscar Baquero, Bruno Cuevas and Carlos Román from the original film reprise there roles. Also Jandra Dubois, Eugenio Arranz, Álvaro Fernández, Laura Galindo, Ignacio Gómez, Jorge Guimerá, Manuel Hernández, Juan Locutura, Carlos Movilla, Eric Narro, Luis Rodrigo, Patricia Rodríguez and Carlos Villén participated on the production.
The film was completed on December 2005, and David show it to his family for Christmas.
"Whija" was the first story to be shot. It was shot in 2 days and it was completely improvised by Bruno Cuevas, David Díaz and Carlos Román.
"Mystic Redrum" story was inspired from a nightmare.