DRS-007 - Broken Home: Mother and Son's Forbidden Pleasure House

The scenes with the son are just an afterthought, so honestly, it's weak as a mother-son incest film. However, the idea of the legal wife, played by Natsumi Kitahara, becoming a slave to her husband and his mistress, played by Reiko Shimura, is brilliant. If the mistress—who is already in the shadows—were the slave, the tone would get too dark, but making the wife the slave creates a real sense of perversion. Reiko Shimura's physique makes her tough to watch as a lead, but she's perfectly cast as the dominatrix. She torments Kitahara in all the right ways. I'd recommend this as a 'married woman' film rather than an incest one.