HBO is developing a limited series based on Gillian Flynn's 2009 novel Dark Places. Variety reported that Flynn will serve as co-creator, writer, and co-showrunner on the project. Brett Johnson will also serve as co-showrunner, co-creator, and writer, with Guerrin Gardner credited as co-creator and writer as well.
Theresa Kang and Caroline Garity of Blue Marble Pictures will executive produce along with Andrea Iervolino and Monika Bacardi of Iervolino & Lady Bacardi Entertainment.
The official logline for the project: "Libby Day was seven when her mother and two sisters were murdered in the famous 1985 'Satan Sacrifice of Kinnakee, Kansas.' She survived--and famously testified that her teenage brother, Ben, was the killer. Twenty-five years later, a pair of mother/daughter true crime 'detectives' locate a grownup Libby and pump her for details, believing that Ben is innocent. Libby, having spent her youth working the talk show circuit, hopes to once again turn a profit off her tragic history: She'll reconnect with the players from that night and report her findings--for a fee. As Libby's search takes her from shabby Missouri strip clubs to abandoned Oklahoma tourist traps, the unimaginable truth emerges, and Libby finds herself right back where she started--on the run from a killer."