Another thought: the explanation you just gave for this film made me consider it a new light. Breathbox did the same thing. Both of you make me recall how there were half a dozen times during the movie when Shaun, Grant or I were asking "What did he just say?" because we had not understood a line of dialogue. Bottom line: (remembering that I've seen it once, two weeks ago)I think it was hard to keep up with and understand as it unfolded in a lot of ways that go beyond intended mystery and intrigue.

Possibly relevant: Two couples and one individual left in the middle of it in the half-full theater where we saw it. As a large portion of my hometown does not have a native grasp of english, I am wondering if it was just impossible for people with even a mild language barrier to follow at all.