Woman's Trail: Wet Path (1980)

Takako joins a convent after her lover's wife catches them in the act. She soon discovers that the nuns and a successful writer have conspired to engage in decadent S&M orgies. Based on the novel by Oniroku Dan.

A mailman becomes obsessed with a pretty, young wife. He captures the woman, tortures her and keeps her in his basement dungeon where she becomes his private sex toy.

Nami is a department store worker who agrees to stand in for a friend in a magazine photo-shoot, which turns out to be for an S&M magazine. When the photos are published, she is sacked and her lover abandons her.

University lecturer Yoshimatsu lusts after Mikiko. He attempts to get closer to her by seducing Mikiko's mother.

Midori Satsuki plays Tamako, the owner of a boarding house and a pawn shop who gets into some erotic entanglements.

A female highschool teacher must deal with sexual harrassment from her students and being trapped in a love triangle with two men, neither of whom has any interest in marrying her.

The story depicts how a female Japanese language teacher who is assigned to a rural high school falls into the trap of the president's family, is trained, and becomes a slave to their lust.

Shizuka is the aristocratic wife of the president of a large company. When she wants to divorce her domineering husband, he orders his employee Yoshi, the son of an adult toy store owner, to train his wife to become sexually submissive.

After an indiscretion with a younger man, her jealous husband disciplines poor Miki. He teaches her how to become the pig that she really is.

When the boss of a yakuza clan in 1920s Osaka is assassinated, Oryu, his mistress, vows revenge. Her search for the killer takes her out of the city. The old boss' son proves a poor leader, only interested in Omitsu, his high-class girlfriend. Yajima, the second-in-command, is taking advantage of the situation to accumulate power for himself...

Two restaurant employees begin a sexual killing spree after they accidentally kill a hitch hiker and find that murder and mutilation is their mutual aphrodisiac.

After witnessing the rape of his wife, a man's mind snaps and he attacks a prostitute. Two years later, the man and the prostitute meet by chance.

The film portrays the life of Tatsuya, a young man of proper descent whose outward respectability hides his urges for rape and torture. This handsome rapist seduces women, then brings them to the basement of the mansion he inherited from his well-to-do parents, where he indulges in lengthy sessions of sado-sexual violence. Based on manga by Masaaki Sato.

Roman Porno from 1974, focusing on the daily life of lower-class individuals in the slums of Osaka.

The world is in turmoil with the October Revolution of 1917, riots over the inflationary price of rice, and the military expedition to Siberia in 1918. But Shinsuke spends his days in the arms of geishas, paying little heed to the events happening around him.

1985 Roman Porno released under the "Roman X" imprint. A young virgin is captured by an abnormal couple. The girl is kept locked in a wooden box, and subjected to sexual torture and abuse. Loosely inspired by the real-life case of Colleen Stan.

Kizaki kidnaps Yuriko and engages in a rape and torture session with her, which he photographs. With the photos, he blackmails flower arrangement teacher Yumeji, Yuriko's older sister. Rather than allow him to shame her clan by sending the photos to the media, Yumeji goes to Kizaki. Kizaki then proceeds to rape and torture Yumeji, who was his true desire all along.

It all starts when Teacher Sayuri tries to help a student who is getting raped. Instead she, herself, is subjected to a sexual assault. Then later a co-worker stops by her house with words of cheer, but instead of making her feel better he captures and tortures the woman.

Kaori Aso lives in the wealthy family. She cheated her stepmother that she has been kidnapped by somebody. Unfortunately, Aso's accomplice really does kidnap her and her stepmother.

Hairstylist Misa meets S&M enthusiast Ippei and is convinced to give it a try. Then later, Ippei's ex-wife, who happens to be one of Misa's beauty shop clients, begins a sexual relationship with her. The lesbian affair is also accentuated by some more S&M.