Charlotte Smith’s long term is planned to the last fine detail, therefore was her sister’s – until Phoebe became a disruption. When their parents commit Phoebe to a notorious asylum, Charlotte knows there’s more to the story than madness. Shedding her identification to be an anonymous inmate, ‘Woman Ninety-Nine,’ Charlotte uncovers dangerous secrets. Insanity isn’t the only reason her fellow inmates were put away — and those in power can do anything to keep the truth, or Charlotte, from getting out.