A detective looks to unravel a mystery surrounding missing children and the prime suspects: two young women who, seven years ago, were put away for an infant's death.

West of Memphis is an examination of a failure of justice in Arkansas. The documentary tells the hitherto unknown story behind an extraordinary and desperate fight to bring the truth to light. Told and made by those who lived it, the filmmakers' unprecedented access to the inner workings of the defense, allows the film to show the investigation, research and appeals process in a way that has never been seen before; revealing shocking and disturbing new information about a case that still haunts the American South.