Typically flimsy sleaze effort from Franco. Anything that may work - some cool location photography, a great score, and a premise that promises some weirdness - is drowned out by long sequences of nothing happening, apparently to pad out its running time beyond what the underworked plot would allow. There are a few decent moments of camp throughout, but they're not really worth having to sit through the rest of it.
Sophisticated Alice Arno eating rare steak makes me hungry. I like how the Gothic premise has a clashing aesthetic similar to Vampyros Lesbos. The castle is a great example of bizarrchitecture. I also kind of enjoyed the porn version titled Les Croqueuses which has some extra dungeon scenes.