great horror film: tense, good characterization, kind of slow-burn.
This is one of those horror films that makes you care about the characters and spends time letting you in their relationship, which makes the film even more tense and creepy!
I think it was just right how much they showed us and how much they kept ambiguous. One thing I didn't like was how the film was marketed. The tagline is "after the ceremony comes the ritual", which doesn't really have much to do with the film, not to mention it spoils the mystery a bit.