For the single-shot action sequence in episode 9 of "Maniac," Emma Stone only had a few hours to prepare, and she injured her wrist doing it. The show's director Cary Joji Fukunaga tells Business Insider the entire sequence was shot in less than half a day. The Netflix series features a dystopian New York City, a fantasy world of elves and talking bugs, and VR where you can have sex with the high priestess of Atlantis.