It manages to be equal parts scary but also fascinating as a drama and mystery as well. The narrative framework of the film is that the audience flashes back to Emily’s story throughout the trial.
At the beginning of the film, Emily has already died due to her possession, and Father Moore is on trial for her death due to the exorcism he put her through. The movie is actually told as a legal drama. While it paid homage to movies like The Exorcist, it also had its own unique approach. It was a fresh take on the exorcism motif used in films before it. According to IMDb, the film also starred Tom Wilkinson as the priest, Father Moore.
In the vein of its precursor The Exorcist, The Exorcism of Emily Rose tells the story of a woman seemingly possessed by Satan and the priest who attempts to help her.