When the teenaged daughter of a religious family transforms from straight-A student into heroin addict, her parents agree to allow a reality TV show crew to stage an intervention and document her recovery. But what they don't know is that she has been taking drugs to deal with the unnatural, evil feelings that have been growing inside of her. And when she agrees to rehab, with no drugs to suppress that malevolent force, she and everyone around her will find themselves in mortal danger from an entity far worse than they could have ever imagined. Exploring the blurry lines between addiction, possession and mental illness, director Seth Grossman’s INNER DEMONS refreshes the horror genre with a grounded, layered story of a young girl's battle against demonic possession.