Taiji ga mitsuryô suru toki (The Embryo Hunts In Secret)

The Embryo Hunts in Secret , is the first film made by Japanese director Koji  Wakamatsu  independently of any film studio.  A pioneer of  pinku cinema,  his work is subversive and universally applicable but without the tastelessness of  the genre's worst contributors. 
The entire film takes place in the protagonist's claustrophobic  apartment ;  the  reclusivity of the protagonist's plight is now to be shared with the audience.  A man keeps his girlfriend tied up in his small apartment  and tortures her.  As the story goes we are subjected to watching this man degrade and abuse the woman -he relentlessly flogs her with a bull whip, makes her crawl around on all fours and beg for food like an animal , repeatedly holds her head under water  and slices her up with a straight-razor , all the while laughing with sadistic glee.  All the while still recounting his family relationship , his oedipal relationship with his mother , and his estranged relationship with his wife , all at the cost of his utter rejection of a child.  He cannot live without controlling every aspect of his own life as well- including  the lives of others he's in contact with.  Throughout the film, there are images superimposed over scenes happening in reality.  Wakamatsu refuses to refashion the man into a monster,  providing instead  a purely pathological portrait of rank misogyny's  desperate efforts to contain what taunts it.