The 1964 Japanese horror movie Onibaba is a slow burn. Much of its horror centers around the crimes and abuses caused by a war, particularly against women. Set in the past in a rural area, it evokes the discomfort of a very difficult era in history. From the start of the movie, death is ever present, and you know you are watching a horror movie.
The slow burn was worth it, for me. The struggles of the relationships between a small group of people transformed throughout the narrative, ending with a final paranormal twist that was believably built into the story.
Shindo, Kaneto. Onibaba, Toho, 1964.
The Devil's Muse 