'American Horror Story' Season 2 Promo #21: Avoid Long Dark Hallways

The promos for "American Horror Story" continue, and we're now on the 21st promo of the series. You have to wonder: will this continue all the way until the show's premiere in October? That would be a lot of promos.

The teasers have been more focused on the workers and inmates at the asylum lately, with one from last week showing a nun finding a scared-looking patient on a spiral staircase. It all seems to be pointing toward the relationships between doctors and patients in the asylum as the main conflict in the second season.

The latest promo continues that trend, as the grey nun from the very first teaser returns. Remember her, with the buckets of body parts? Well now she's heading down a long hallway to a cell door, in which there appears to be a trapped patient. The creepy part is the little skip, where the nun jumps around the screen a bit. Does she turn into the black nun for a second there? Is this to show the angel/devil duality that Ryan Murphy spoke of?

And who is that inmate in the cell? Whoever it is, he or she is certainly under some serious lock and key.

Check out the latest "American Horror Story: Asylum" promo, titled "Door," below: