The twelfth season of the American horror anthology television series American Horror Story, subtitled Delicate, is based on Danielle Valentine's book Delicate Condition and the first season of the series to be based on a novel instead of having an original storyline. It was also the first season not to be run by Ryan Murphy; Halley Feiffer was the showrunner and wrote all nine episodes. The ensemble cast includes returnees Emma Roberts, Denis O'Hare, Dominic Burgess, Zachary Quinto, Billie Lourd, Grace Gummer, and Leslie Grossman, with newcomers Matt Czuchry, Kim Kardashian, Annabelle Dexter-Jones, Michaela Jaé Rodriguez, Cara Delevingne, Julie White, Juliana Canfield, and Maaz Ali.