This thriller is about a modern-day Catholic “assessor” who investigates supernatural cases to see if an exorcism is needed. Don’t believe it? Neither does his partner, a prosecution psychologist.
The two join forces because, according to the assessor, “possession looks a lot like insanity”, and she can help him distinguish between the two.
The heavy religious connotations might bother some they’re nothing but a starting point (every supernatural TV show requires a supernatural premise). If you liked the X Files, for example, you will love this.