demonism (noun)

1. The horror movie depicted a sinister cult practicing demonism, summoning dark forces from the underworld.

2. The gothic-inspired mansion had an eerie atmosphere with intricate details of demonism incorporated into its design.

3. The protagonist's battle against the forces of demonism provided a thrilling climax to the movie.

4. During the Salem Witch Trials in the late 17th century, many innocent individuals were accused of demonism and faced persecution.