BELLADONNA OF SADNESS is the acid dream of ASTRO BOY creator Osamu Tezuka. Directed by his collaborator, Eiichi Yamamoto, this psychedelic, psychosexual dose of cinematic psilocybin was, believe it or not, an early influence on much of the anime seen today, although in places it appears more like a violent porn version of YELLOW SUBMARINE meets WIZARDS.
The story is of Jean and Jeanne, two lovers who get married but cannot pay the tribute to the lord of the land. So he takes payment in the form of droit du seigneur. The violence of the act is probably more disturbing in its metaphorical depiction than any literal depiction could ever make it.
It is after this invasive injustice that Jeanne has a nighttime encounter with an imp (who looks like a bit of male anatomy), who seduces her and promises to give her the power she craves. She resists, but allows for just a little bit of power -- enough to save her ailing husband.