The thing about
The Fly is that it works both on the level of sheer body horror but also as a strangely moving portrayal of a disintegrating (literally) romantic relationship. As when two people grow apart irreparably ... or when one needs to take the relationship in a direction where the other can't, or doesn't want to go.
Another touchstone for The Shrouds is 1997's
Crash, in that both films touch on imaginative, if highly transgressive sexual situations. Indeed, the character played by Sandrine Holt feels like she walked out of that movie. And never has a relatively mainstream movie like
The Shrouds featured such an abundance of old people (50+) nudity.
But I don't want to mislead anyone. Beyond the body horror, there's little of the genre elements of well known earlier films. And overerall
The Shrouds is incredibly artsy and 'funereally' paced (pun intended), even more so than his last one, including a plot involving conspiracy aspects that may feel a little misplaced.