I suspect part of the power of this film is, like the Japanese film/book, Audition, in being unaware of just what happens in a film. If you do not know what the twist is and haven’t watched the film then stop reading. For those aware of the focus of the film, carry on.
Spoiler Warning Over
I was eating a rather lovely cheese-cake whilst waiting through trailers for We Are What We Are to start. As soon as the patriarch of the family started spewing up black liquid in a shopping district, I was afraid I should have eaten the cheese-cake sooner.