The film is Beautiful Girl Hunter aka Star of David. This is a 1979 production directed by Norifumi Suzuki.

Run time is 1 hour 40 minutes

I obtained my copy on eBay where it appears from time to time and is available at the link below. My copy has English subtitles.

As this is practically a mainstream film it is quite involved but non-Gimp moments must be included as the plot is vital so bear with me please.

We open with a guy running down a street in the rain. In the background one hears sirens. He jumps a security gate and gains entry to the mansion. Inside, he has bound a man and his wife. He slaps the wife around and slices the husband's face with a knife. After obtaining money from the couple's safe he has the wife suck him off. She is untied and raped while the husband writhes on the floor. She orgasms. After the goon has departed and things return to normal the husband goes a tad batty. Having seen the wife orgasm with a rapist he begins to alter their sex life by tying and whipping her at night.

Time passes and she gives birth to a boy child. The boy is now a young man and affluent. Luxury cars, boats and living alone in the mansion. The parents are both dead and left him a fortune. Father was killed during a boating excursion. He has an attractive young woman who adores him and calls him brother. They have been friends since childhood. In flashback we learn he is the son of the rapist. As a boy he would spy on the parents at night, seeing his mother bound on the floor forced to watch as dad does a concubine on the bed. Dad was making mom suffer as he suffered that night. We find the mother who raised him well committed suicide after years of abuse and being so shamed by the husband.

He begins to transform his huge basement into a dungeon and develops a fascination with evil as personified by Hitler. He believes all people are evil in some form and simply wear masks to hide their aggression and evil. After donning a disguise he lures dear old non-bio dad's concubine to the mansion and drugs her drink. Down in the dungeon he removes her clothes and while she's still unconscious rapes her. He ties her to the bed and tells her his real father was a serial rapist/killer and he now intends to live that life as well. He lashes her with a bull whip.

We get some interaction between him and his young lady. He throws a birthday party to celebrate his inheritance. As the party goes on he goes to get a bottle from the wine cellar. The captive chick is suspended by her wrists from the ceiling. He takes a knife and drives it into her heart then rapes her inert hanging body. A quick shower and back to the party. The police find her body in a field the next day but they suspect the boy's real father is the culprit.

On television our young man sees a young girl student talking about peoples' madness and the need for peace. Shortly thereafter another young girl is cycling down a country path. She is accosted, raped and manually strangled by the young man's real father. The dad seems to know he has a son by that night of rape although he has never seen him. The young girl from television is walking home from school and is approached by our young man in his car. He poses as a reporter wanting an interview and she agrees. He takes her to his mansion where she appears in the dungeon chair bound AOH and legs spread. He tells her all people in the world are evil and he will bring that out in her. He cleave gags her and cuts away her blouse and bra. As he threatens her with shears she admits how often she masturbates from her sexual frustration. He unties her so she can do herself while he watches.

The young man is taking a class where he sees numerous photos of nazi atrocities and lays around the house surrounded by such photos masturbating while our captive is taking a pony ride with weights attached to the ankles. When she begs for release he obliges her with a face down horizontal suspension. As time goes by her torment lessens somewhat as she's allowed some lingerie and her hands are kept tied in front. Her mask has been her sexuality and she no longer has to play goodie two shoes searching for world peace.

Our hero takes a walk with his young lady friend and they run into a female pop star whose teen fans are fawning all over her. Looks like he's set his sites on this one so he begins to watch her television performances. His schoolgirl hostage is allowed to continue her studies and admits she is now his slave. He bends her over a desk, chokes her and does her from behind. Later she is released on a beach to go home.

The female pop star and her female personal assistant are in town and are taken in by a message for a media interview. Guess who picks them up! They are whisked off to the mansion where they recognize their plight. He knocks the assistant out and chloroforms the pop tart, confining them in small cages in the dungeon. He enters and shows the pop star she has been dropped from numerous appearances and her songs are leaving the charts. Already her mask is revealed as she is more concerned with albums than being held captive in a dungeon. Her wrists are bound behind to the cage bars and he fondles her. Treating the assistant nicely, he does her from behind. Later, both women are sitting cross legged on a round table, bound and chained together. The pop star gets lashed then must sing for him. He releases the assistant and has her flog the star - her mask revealed, years of being treated like crap and now it's payback time.

Seems the fuzz are still looking for dear old dad and there's a short running chase scene. Our young man stops by the school his released captive attends and sees she is doing well. By now, the pop star is on hands and knees eating out of a dog bowl on the floor while the assistant dines in luxury at the table. In a moment of inattention our hero gets clobbered with a stool by the star who makes a run for it. She makes it into the yard where he catches her and strangles her to unconsciousness. While he drags her back in the assistant has bolted and makes it to the street. Not to worry as, yes you guessed it, dad is waiting. At the door we have a father-son reunion with dad carrying the assistant OTS. Dad spends the night in luxury he has never known.

Next day the police arrive looking for dad. In the dungeon pop star is suspended from the ceiling in a rope basket while sonny and dad have assistant bound and stretched on a table smearing her with butter while the pet dog licks and nibbles at her. Dad rapes her while son looks on and as he unloads, he strangles her. The body is found the next day. They release the star in bra and panties on a downtown tower and everyone recognizes her. Trying to reaffirm her star status she removes the bra and panties and plays to the fans. Our young man is watching from a vehicle, takes out a silenced scoped rifle and pops a cap into her chest.

He runs into his sweetheart at the beach and says he has created a world specially for her and takes her home for dinner. They go downstairs where dad is now confined in a cage and they are introduced. Son grabs her and ties her into a baby carriage AOH, legs spread and elevated. She needs to go to the john so he cuts off her panties and has her go on the floor. She is hoisted into the air and disrobed. Dad gets released and gropes her. He throws her onto the bed and rapes her. She orgasms. Dad starts to strangle her but sonny kills him.

The girl tells sonny she feels sorry for him. They have consensual sex. When he awakes she is gone but has left a note. Her mask in revealed. Despite her love for him and her deep faith, she began an incestuous relationship with her father in high school. He goes to find her and downstairs she has hanged herself out of shame. He sits in the garden and chases visions of the little girl he knew. The End - Phew!

Movie Pluses - a really well done production. Acting is first rate and the premise makes the whole thing very believable. Bondage and torment scenes are short but well staged. There is no pixelation in this as camera angles and objects in the foreground are used instead

Movie Minuses - wish the scenes had been longer. More on the torment end as well.