The film, told from a Protestant priest, who turns his back on his religion and practices as part of a documentary on the last exorcism. He who believes in God, must also accept the existence of the devil.
The priest Cotton Marcus, who has performed exorcism for years on behalf of the Church for money, does not believe in exorcism. He wants to put this fraud story to the truth. As he performs his last exorcism; when Cotton is to cure the daughter of a farmer, his faith is put to the test.
