• 'American Horror Story' Season 5 Poster

'American Horror Story' Season 5 Poster (Photo : Twitter)

Following its tradition of airing two back-to-back episodes on Halloween night, FX will air two-hour episode of "American Horror Story" season 5 "Hotel" which will be aptly named "Devil's Night."

"American Horror Story" season 5 is set to premiere on Oct. 7. However, the fans of the show are more eagerly waiting for Oct. 31 when the two hours of the horror show will be telecasted.

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The first hour will be based majorly on Lily Rabe, who is making the comeback this season with the role of serial killer Aileen Wurnos, Enstarz reported. Wurnos was an infamous prostitute from Florida who was known for killing seven men between 1989 and 1990 and was later executed in 2002. Wurno is likely to be one of the major characters of the Halloween episode.

A dinner party will be hosted at the hotel which will be attended by its guests including another serial killer John Wayne Gacy as well as the detective John Lowe (Wes Bentley).

"It's the biggest serial killers of all time in a room with him and he has to figure who is trying to make him lose his mind," said the show's creator Ryan Murphy to tease the fans about the big day.

The other hour of the episode will feature ""American Horror Story" newcomer Darren Criss, who will play the role of a hipster. Criss will take refuge in the hotel along with his girlfriend to to avoid trick-or-treaters, but complaints Iris (Kathy Bates) about the lousy service of the hotel  when all hell breaks loose.

Meanwhile, "AHS" alum Jessica Lange is likely to make a comeback in the upcoming season. Although she has not yet featured in any of the first looks or trailers of the show, Murphy has declared to Entertainment Weekly that he is trying to deal with her play schedule and "she will be back."