PARADISE LOST 3: PURGATORY, the new installment of Joe Berlinger and Bruce Sinofsky's HBO documentary film series about the notorious 1993 "West Memphis Three" child murders, chronicles the 18-year fight to prove the innocence of Damien Echols, Jason Baldwin and Jessie Misskelley, incarcerated for an alleged Satanic ritual killing the convicted men-and their supporters worldwide-maintain they did not commit. With Echols on death row and Baldwin and Misskelley serving life sentences, PARADISE LOST 3 examines a horrifying crime with fresh insights that only the passage of time can provide. Facts are reexamined, new evidence is revealed, and new suspects are scrutinized. With an extraordinary perspective of three films spanning nearly two decades, PARADISE LOST 3 is a provocative examination of American justice and a celebration of the power of cinema to effect social change.