Devil's Knot is a biographical thriller drama based on the events of the West Memphis Three case directed by Atom Egoyan (The Sweet Hereafter, Chloe) and written by Paul Harris Boardman and Scott Derrickson (Sinister, The Exorcism Of Emily Rose). 

Devil's Knot tells the chilling story of three young boys, Stevie Branch, Christopher Byers and Michael Moore, going missing in the town of West Memphis, Arkansas. When the bodies are found beaten and murdered, the police and religious people of the town put the blame to a group of teenagers they believed to be Satanists, due to the dark nature of their appearance. After police investigation, three young adults, Damien Echols, Jason Baldwin and Jessie Misskelley Jr., are arrested for suspicion of the crime. These three youths claim to be innocent of the murders, but the citizens of the town want justice for the murdered children and the punishment of the teenagers, innocent or not, seems to be their best answer.

The film will star academy award winner Reese Witherspoon portraying Stevie Branch's distraught mother, Michelle Enos (World War Z, Gangster Squad) as Vicki Hutcheson who was key in the arrest of the teenagers, Academy Award winner Colin Firth as private investigator Ron Lax and Dane DeHaan (The Amazing Spider Man 2, The Place Beyond the Pines) as Chris Morgan, who was a suspect in the murder case.