Horny House of Horror

This low-budget Japanese movie somewhat resembles one of the late 80's/early 90's no-budget efforts of American directors like Fred Olen Ray, Dave Decoteau, or Jim Wynorski ("Hollywood Chainsaw Hookers", "Evil Toons", "Beverly Hills Vamp"). It has a small cast isolated at a single location and it relies a lot on topless female nudity and rather tame softcore sex, with bone-headed humor mitigating the actual horror and gore. Befitting the new millennium though, it's much more outrageous. It has the same basic plot as "Beverly Hills Vamp" with a lot of horny guys being dispatched by prostitutes at a sinister brothel/massage parlor, but there is more of an emphasis on bloody castration scenes, although they're still played strictly for laughs.
The three female leads are all played by former AV (adult video) starlets. The most famous is Asami, who has been in a lot of films like this and is relatively talented in that she can play both a badass and a more traditionally submissive female role. She gets to do both here. And if you find it either funny or sexy (I don't really), she and her male partner here both end up farting in each others' faces at different points. Asami and the other girls show a lot of "T", but not enough "A", and of course no "V" (or "P"?) since this is Japanese. The Japanese optical fogging here is downright bizarre. The dismembered, uh, members of the male victims turn up at several points, but they optically fog only the tips so they look like Vienna sausages (and wouldn't they deflate after all the blood ran out of them?). More annoying though is the optical fogging of the front of Asami's see-through, chain-mail underwear.
This movie is actually pretty entertaining though aside from the less- than-hot sexual content. It holds together well throughout with martial arts and sword fighting at the end (including a memorable scene of one character having her eyes literally knocked out). There's also a nice mean-spirited twist at the very end involving one the male characters, who is a virgin and has resisted the deadly hookers because he is trying to stay faithful to his fianceé. Don't necessarily expect a hot sex romp, but this is kind of a FUN movie.