The opening seconds of the first teaser trailer for American Horror Story: Freakshow will make you go "hmm," the next few seconds will make you go "oh," but the final few seconds will make you go "OH GOD, AAAHH, EWW!"

The fourth season of the series focuses on the last American freak show in the 1950s and will premiere on FX in October.

Returning cast members are Jessica Lange, Sarah Paulson, Evan Peters, Angela Bassett, Kathy bates, and Frances Conroy. Freakshow will also feature Horror Story newcomers Michael Chiklis and Wes Bentley.

[Via Vulture]