On May 1, 2014, Deadline reported that Charlize Theron had acquired the film rights to Susannah Cahalan's 2012 memoir Brain on Fire: My Month of Madness. Dakota Fanning was set to play Cahalan, a young woman who one day wakes up in a hospital with no memory of the events of the previous month. Theron would produce along with Beth Kono and A.J. Dix through her banner Denver and Delilah Productions.
