"Demon" is a Polish horror film directed by Marcin Wrona, released in 2015. The story revolves around a groom, Piotr, who, during his wedding festivities in a remote village, becomes possessed by a malevolent spirit. As the celebration unfolds, dark secrets and tragic histories emerge, intertwining with the supernatural. The film explores themes of tradition, the past's haunting nature, and the impact of unresolved trauma, ultimately reflecting on the consequences of ignoring history and the emotional turmoil it can provoke.

While opinions on the scariest movie ever made vary, many critics and audiences often cite "The Exorcist" (1973) as a top contender. Its chilling portrayal of demonic possession, combined with groundbreaking special effects and a haunting score, has left a lasting impact on horror cinema. Other films frequently mentioned include "Hereditary," "The Shining," and "Psycho." Ultimately, the "scariest" movie is subjective and can depend on personal fears and experiences.

"Demon City 2025" is an animated film directed by Yoshiaki Kawajiri, known for his distinctive style and engaging storytelling. The movie is set in a post-apocalyptic future where a city is overrun by demons. While it features impressive animation and a dark atmosphere, opinions on its plot and character development vary. Fans of the horror and supernatural genres, as well as those who appreciate 80s and 90s anime aesthetics, may find it worth watching. However, it might not appeal to everyone due to its niche themes and style.

The movie "Nefarious," released in 2023, is a horror film that centers around a man named Edward who is scheduled for execution and claims to be possessed by a demon. While "Nefarious" itself is a fictional story, it explores themes of possession and morality. It is not directly based on a true story, but it draws inspiration from various real-life discussions around possession and the supernatural. The film aims to provoke thought about good and evil, rather than recount actual events.