The trailer to "American Horror Story: Hotel" has been revealed.

The new trailer is titled "Hallways," as it shows a series of hallways, which introduce a number of characters from the series. The trailer first opens on an elevator following a child, and then introduces Chloë Sevigny and Wes Bentley walking down a dark hallway as the child runs between them.

It then shows another hallway, in which Sarah Paulson and Kathy Bates are introduced. Bates seems to lock a room, while Paulson is putting down a mattress filled with blood.

A red hallway is introduced, and this one is filled with lights. Angela Bassett seems to be down the hall leading another character with a leash.

The child appears again and leads the viewer into a white room with Matt Bomer sitting in it. He is later seen holding two boys' hands.

Following that sequence, the boys reappear, and this time they are in a gray laundry room. Following that is a hall with a wedding dress, and Cheyenne Jackson appears alongside Max Greenfield. At the end of the trailer, it is revealed that Lady Gaga is wearing the dress.

"American Horror Story: Hotel" is one of the most anticipated series of the fall season, and many things have already been revealed. According to character descriptions revealed a few months ago, Lady Gaga is the Countess and the owner of Hotel Cortez. Meanwhile, Paulson is a drug addict who comes into conflict with Bates' character Iris, the manager of the hotel. Bassett plays an actress and former lover of the Countess. Actor Evan Peters, who does not show up in the trailer, is the original owner of the hotel in the 1930s.

The series premieres Wednesday, Oct. 7 at 10 p.m. EDT on FOX.