In 1973, Eiichi Yamamoto, director of the first Astro Boy movie and Kimba the White Lion, released one of the most psychedelic movies ever made, which was recently rescued from being lost by a new 4k restoration, including censored scenes of which only one print survived. Trippier than Mind Game, drawing on influences like Beardsley, Klimt, Kandinsky, pop art and many more, the animation varies from slowly panned watercolour images to full movement. People are ugly, and the story is uglier. The main female character is raped near the start, which is represented wildly abstractly and yet very graphically, and later there are full-on orgies. The devil appears as a penis with a face, growing larger as his influence on the MC increases. The character ends up being burned as a witch, and the story is hinted to be related to that of Joan of Arc. The story is fairly thin for the length of the film (and is sometimes hard to follow because of the whackiness of the graphics through which it is told), and past the middle some people feel that it drags - but it continues to fascinate. Is it an expression of feminism, or is it overblown soft porn? - the critics sure can't agree. You just have to watch it for yourself.
What is this extraordinary film? It's called Kanashimi no Beradona - Belladonna of Sadness.
Apparently it was also an influence on Revolutionary Girl Utena.