'American Horror Story' for '60s era season two: 'It's about insanity'

American Horror Story co-creator Ryan Murphy has dropped new hints about season two.

The FX drama's second run will be set in an institution for the criminally insane, with Jessica Lange playing the head of the asylum.

"I guess if the first season was about infidelity, the second season is about sanity," Murphy told Vulture.

"What makes someone sane or insane? Sometimes the people you think are insane are actually the most sane of all. It's fun to write about people who society throws away."

The showrunner also confirmed that the new episodes - which will feature new cast addition Chloë Sevigny - will be set in the 1960s.

"Chloë... plays a character who was put in an asylum because she was a woman who likes sex, so her husband sends her away," he revealed. "At the time, you were able to put people away for that.

"Another character is institutionalised for being a lesbian. To me, there's nothing more scary than somebody coming to you and saying they're going to take you away and put you in a mad house and you have no legal rights."

Murphy added that he had devised the new season's asylum setting while planning the first year of American Horror Story.

"I knew the first season was about a very contemporary haunted house, and I knew the second season was gonna be... about an insane asylum," he confirmed. "I pitched it in the very beginning."

American Horror Story will return to FX and FX UK in late 2012 with thirteen new episodes.