Alex uses an unconventional treatment to save a dying patient; a Halloween-hating couple tests Iris's limits.
Cast: Kathy Bates, Sarah Paulson, Evan Peters, Wes Bentley, Matt Bomer, Chloë Sevigny, Denis O'Hare, Cheyenne Jackson, Angela Bassett, Lady Gaga, Mädchen Amick, Kristen Ariza, Thomas Barbusca, Joseph Barone, Jessica Belkin