Review: sheer ugliness 
Sentiment: negative

Review: the work of a filmmaker who has secrets buried at the heart of his story and knows how to take time revealing them 
Sentiment: positive

Review: that actually has a brain 
Sentiment: positive

Review: is an exercise in chilling style , and twohy films the sub , inside and out , with an eye on preserving a sense of mystery 
Sentiment: positive


Review: speculation , conspiracy theories or , at best , circumstantial evidence