The performances transcend the film's tropes, grounding it in characters that feel more complete than this subgenre often produces.

Tells a fascinating and unsettling true story, and does so well, without pretending to have all the answers.

Your blood may run cold, but you now find yourself pinioned to the story.

Each character in this movie — down to the smallest one — is an individual rather than a type, prone to spontaneous changes of mood and sometimes amusing outbursts of pettiness or ill humor.