"Secret Thing" follows the story of two 11-year old girls convicted of murdering a baby and incarcerated in juvenile detention until they turned 18. They are released, and immediately children begin to go missing. Police turn their attention back to the two girls, while the mystery surrounding the original murder comes back to light.
Fanning and Macdonald will play the duo and Lane will play the mother of one of the girls. Banks is the lead police officer who finds herself emotionally invested in solving the case.
The movie marks a much-anticipated narrative directing debut for Berg, who previously helmed the critically acclaimed documentaries "West of Memphis" and "Deliver Us From Evil."
Anthony Bregman of Likely Story and Frances McDormand are producing, with financing from Merced Media Partners, Palmstar Media Capital and Hyde Park Entertainment. The script comes from Nicole Holofcener ("Please Give, "Lovely & Amazing"), adapted from Laura Lippman's 2003 novel which McDormand optioned in 2010.