Fans of FX's 'American Horror Story' series probably believe that they've seen it all, however series creator Ryan Murphy has recently informed us all that we haven't yet seen anything.

In a recent interview with EW, Murphy speaks on the most disturbing scene he has ever done for the show being present in the upcoming 'Hotel' season.

It appears to involve what they call the "addiction demon," a humanoid creature that seems absent of eyes, mouth, and a nose. The scene also involves actors Max Greenfield and Sarah Paulson.

"He is a representation of that and what people go through fighting addiction," explained Murphy. "It's not done lightly or blithely. I think it's very powerful and strong."

Greenfield is said to play a blond junkie that checks into the hotel and meets Paulson's character Sally and the demon.

"Ryan gets real pleasure out of how far, I think, he can push it," Greenfield said. "And when we were doing that stuff, he was happy and he was scared. We all were. And it was a good vibe on set because of that. I think we were like, 'F- yeah, man. Let's push this and let's see how far we can go."

Paulson seemed to also be unfazed by the disturbing scene.

"None of it's crazy to me," she said. "I walk in and I'm like 'Hello ... demon person.' I don't even think twice. I had two heads last year - I don't know what you want me to say. Like there's nothing anybody can do on the show to shock me anymore."

'American Horror Story: Hotel' premieres this fall.