In 1887 young Nellie Bly sets out for New York and a career in journalism, determined to make her way as a serious reporter, whatever that may take. But life in the city is tougher than she imagined. Down to her last dime and desperate to prove her worth, she comes up with a dangerous plan: to fake insanity and have herself committed to the asylum that looms on Blackwell's Island. There, she will work undercover to document - and expose - the wretched conditions faced by the patients. But when the asylum door swings shut behind her, she finds herself in a place of horrors, governed by a harshness and cruelty she could never have imagined. Cold, isolated and starving, her days of terror reawaken the traumatic events of her childhood. She entered the asylum of her own free will - but will she ever get out?