The answer lies in that title. It's not a translation from the Cantonese, but the original title. For Stories from the Red Chamber is actually an Italian production, being directed by Joe D'Amato / Aristide Massaccessi under yet another of his multitudinous pseudonyms, namely the made-in-Hong Kong sounding Robert Yip.
Note that 'Heijin Lab' is an Italian company
In interview Massaccessi freely admitted to copying the then-in vogue Sex and Zen films and hoping to pass it off as an authentic Hong Kong product. While those more knowledgeable about Italian or Hong Kong productions could probably identify the film as a counterfeit – where are the otherwise familiar Hong King cinema faces and names and who is hiding behind the pseudonyms being used? – one wouldn't be surprised if the casual viewer was taken in by the ruse.
Yet, I don't think it matters too much, since a number of the episodes presented, such as the man who disguises himself as a woman in order to infiltrate the master's house and then has his comeuppance when he discovers a hermaphrodite engaged in a similar kind of deception, or of the wife who is fitted with an locked chastity belt on the instructions of her untrusting husband before he goes away for a time, prove to be somewhat universal, the differences emerging more at the level of the costumes and setting.
Up the chastity belt
Indeed, for anyone more familiar with Italian exploitation of the 1970s than Hong Kong exploitation of the 1990s, the thing that the film may prove most reminiscent of is a Decamerotic. There is, after all, that same basic combination of bawdiness and earthiness juxtaposed with moral tale wrap up found in the likes of Ubalda: All Naked and Warm – a Fenech vehicle that tellingly also features a chastity belt scenario – and D'Amato's own Novelle licenziose di vergini vogliose / Le Mille e una notte di Boccaccio a Canterbury, the latter title also foregrounding the actual and purported literary origins of both the Italian and Hong Kong forms.
We can explain everything, honest...
The abundance of nudity and softcore fumblings amongst the Chinese-looking cast and corresponding absence of hardcore material and Europorn types further distinguishes the film from the bulk of the D'Amato's 1990s output, including – just to bring things full circle – the two Decameron Tales entries he lensed for frequent partner-in-porn Franco Lo Cascio a couple of years later.
As such, the film is also revealing of how far the tide was turning against the old-style of Italian exploitation film by this time, that Italian filmmakers were now seeking to imitate their Hong Kong counterparts rather than the other way around when we think of the likes of Tsui Hark's The Butterfly Murders and We are Going to Eat You.
This also extends to the soundtrack where Piero Montanari delivers a rather obvious and repetitive pseudo-Oriental synth based score; at least when Hong Kong filmmakers borrowed Morricone or Goblin cues and placed them in all sorts of unexpected places and contexts they were stealing something worthwhile.
