Ryan Murphy is planning a “large reinvention” of American Horror Story when the macabre anthology series returns for a fifth season.

The next outing will be "completely different," FX CEO John Landgraf told TV Line at the recent TCA winter press tour. “I know what it is, but I can’t [say],” he . “I have to let [series creator] Ryan [Murphy] do his thing on that. But it’s very different."

“One of the things I love so much about that is that it can be radically, radically reinvented in terms of tone, setting, period, characters, cast," said Landgraf. “I think there’s going to be an unusually large reinvention in between Book 4 and Book 5 relative to, say, between Book 3 [Coven] and 4 [Freak Show].”

The setting and characters for Season 5 have already been selected, Landraff revealed, adding only that the show would return to the present day.

“Ryan is really, really independent in how he makes these shows and what he does. So I know the setting, I know something about the characters and something about the tone and the time period, but I don’t actually know the cast yet."

While Jessica Lange has promised to return for one more go, nothing else about casting has been revealed.