Maniac: 7 Things You Need to Know About Netflix's New Series Starring Emma Stone and Jonah Hill

Maniac stars Emma Stone and Jonah Hill, with recurring roles from Justin Theroux, Julia Garner, Sally Field, and Billy Magnussen.

Dr. James K. Mantleray (Theroux), the inventor of the "miracle cure," claims he can fix any ailment of the mind, from heartbreak to psychosis. To prove it, he hosts a three-day trial with 10 strangers. This group includes Annie Landsberg (Stone) and Owen Milgrim (Hill). We know that Annie has major relationship issues with her mom and her sister. Owen comes from big-time New York City wealth, and he has a questionable diagnosis of schizophrenia.

The new show is based on a Norwegian comedy series of the same name. There are two seasons total, and you can watch the first one on Netflix.

In an interview with Elle, Stone explained why she took on the series: "The thing I liked about Maniac was that it's about people who have their own internal struggles and are trying to fix them with a pill. But you see over the course of the show that human connection and love is really the only thing that gets us through life. I liked that idea, and I love Jonah [Hill]. I had worked with him on the first movie I ever did [Superbad], so it was, like, 11 years later."

Patrick Somerville, who wrote four episodes of The Leftovers, signed on to adapt the series for Netflix. Somerville also wrote several episodes of the short-lived FX drama The Bridge.

Netflix has announced the series will premiere on Sept. 21.