She's careful not to reveal spoilers, but promises AHS fans won't be disappointed. "It's totally creepy," Dewan-Tatum said. "Everyone is so creepy."

We're assuming she and Levine (who makes his acting debut on the show) will share a steamy scene or two. "He is so much fun to work with," Dewan-Tatum said. "There is so much talent in that man, I can't even explain it. I don't know what I'm allowed to say, but I'm sure you can use your imagination."

What she can talk freely about is 10 Years, her new indie dramedy about a high school reunion costarring Channing, Rosario Dawson, Aubrey Plaza, Chris Pratt, Justin Long and one of our new favorites Ari Graynor.