"It's going to be really insane. In some ways, it's returning to the classic horror genre like the first season. Freak Show was more outside and sprawling, this is more tight and scary. The sex and the blood are really amped up too and outdoing themselves," Wittrock, 30, told PEOPLE at the 67th Emmy Award Performers Nominee Reception in Los Angeles this weekend.
Wittrock has already starred on AHS, but he says Hotel has him doing things he never expected. "There's a little homoerotica. My character's not gay, but he does what he's got to do to get by. That entails a few things. There's also a few intimate moments with The Lady herself which has been a lot of fun," revealed Wittrock, whose character will engage in a love triangle with Lady Gaga and Matt Bomer.
Though Gaga just joined the franchise this season, Wittrock says she brought her A game.
"She's the real deal," he said. "Everyone's like, 'God, she's so approachable, like I can just go up to her and talk.' She's taking it very seriously as an actor. I think people are going to be very impressed."
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"It's really good," Wittrock said about newlywed life. "It's nice to come home at night. You realize that home is an important place."
But home is not where the couple will be celebrating their one-year anniversary on Oct. 18 – they'll actually be headed to Cabo San Lucas, Mexico. So, will it be a relaxing type of anniversary or a party-heavy holiday? "A little bit of both," Wittrock said with a smile.
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American Horror Story: Hotel premieres Oct. 7 on FX.