Depiction of the real-life character Father Gabriele Amorth, a priest who acted as the Vatican's chief exorcist and who performed over 100,000 exorcisms during his life.
He died in 2016 at the age of 91.
Amorth wrote two memoirs - An Exorcist Tells His Story and An Exorcist: More Stories - and details his experiences fighting Satan and demons who grip people in their evil.
