It's not supposed to happen. Be prepared when it does.
Susannah Cahalan, an up-and-coming journalist at the New York Post becomes plagued by voices in her head and seizures, causing a rapid descent into insanity.
Gerard Barrett
Director

Chloƫ Grace Moretz
Susannah Cahalan

Thomas Mann
Stephen Grywalski

Richard Armitage
Tom Cahalan

Carrie-Anne Moss
Rhona Nack

Jenny Slate
Margo

Tyler Perry
Richard

Alex Zahara
Allen

Jenn MacLean-Angus
Giselle

Ken Tremblett
Senator
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