I guess out of respect for Junior's sentiment that this film demands (or at least rewards) absolute purity in approach I'll put my thoughts here.
Admittedly, I was not pure in my approach in that I had seen just the faintest glimmer of a headline review saying that The Perfection as a miss in tackling #metoo. In fairness, given that we find out that Charlotte (Alison Williams) had been raped by those at the elite cello school she attended, and that structured abuse drives the plot of the film, the film's place in the current dialogue was an inevitable consideration.
Though in fairness, my first inkling that the film wasn't going to nail the landing came well before the metoo aspect rose up. Just watching Charlotte and Lizzie (Logan Browning of the Dear White People series) travel in Shanghai as the first elements of horror arise gave me a bit of a queasy feeling about the portrait it paints of China as gross and backwoodsy in certain ways, even while Charlotte in particular is an ugly American. Even as we find out that Lizzie's illness is not natural or local, it still kind of acts as a caution to travel.
I was fairly put off by the stylistic choices here too, in two instances rewinding and revealing an enhanced perspective to sequences as if to celebrate the writers/director's cleverness in the twist. But there's nothing clever about how the film handles its serious subject. I can see the need for horror revenge fantasy, but the toll our presumptive victims pay makes it a bit off as that. Ultimately, I just wasn't there for this film.