Last week, FX released the first teaser trailer for Season 2 of American Horror Story, returning to FX in October. Today, the network has debuted the second teaser, that takes us inside this East Coast mental institution. The video features a creepy nun clad in white, hanging up a blue coat, while another nun in black prays in an alcove. We have no idea what any of this means, but it's clear that these are not your average nuns. Check out the latest footage before the Season 2 Premiere debuts sometime in October.