From Variety:
Though the credits don’t say so, ‘‘Devil’s Paradise’ is adapted from Joseph Conrad’s “*Victory,’’ about a strange, lonely man (Jurgen Prochnow) who’s spent much of his life wandering around some distant islands.
Escher, the Prochnow character, is in partnership in a coal mining venture on a small island with a disreputable Irishman (Tony Doyle) who, early on, is murdered by natives. Escher travels to the mainland town and checks in at the inaptly named Grand Pacific Hotel, run by an arrogant German (Mario Adorf) and his native wife.
Here Escher meets the sinister Mr. Jones (Sam Waterston), a pervert, who ‘‘likes to be entertained’’ and who travels together with his quietly ruthless companion, Gato (Dominique Pilon). Escher also meets a lovely half-English girl, Julie (Suzanna Hamilton), who plays sax in an all-girl band, and who has just discovered that Adorf intends to have her for himself. Escher helps her escape to his island, where they fall in love, but they’re followed by Waterston and Pilon who precipitate the film’s action climax.
Given the project’s literary antecedents, it’s no surprise the characters are prone to philosophize from time to time, and since the film is set in the 1930s, there are further resonances to be found in the subtext.
I mentioned yesterday that I had nothing from this film. It wasn’t that difficult to find, although the quality of this transfer is terrible, and it’s a Belgian DVD with hard-coded Dutch/Flemish subtitles.
So it goes.
I think we can add it to her full-frontal credits, or at least we could if we could see that the hell is going on:

I added the videos to her nudography

Good find, i came up blank.
DVD Lady had a copy – twelve bucks if delivered online.
Did you have any luck with Die Stimme / The Voice? I drew a blank on that one.
No luck there either.