Paradise Lost 3: Purgatory

...does a smooth job of retelling the entire story, so you needn't have seen the first two.

The stories of the West Memphis Three, in other words, are not theirs alone, as they have shared them with Berlinger and Sinofsky, and the rest of us, for so long.

Arguably the greatest feat of Purgatory is how Berlinger and Sinofsky have created something that works both for those who have seen the previous films and for those who have not.