New England, The 1890s
When a young doctor begins work at an isolated mental asylum, he is expected to fall in with the shocking regime for treating the patients. He is soon intrigued by one patient, a strange amnesiac girl who is fascinated by books but cannot read. He embarks upon a desperate experiment to save her but when his own dark past begins to catch up with him, he realises it is she who is his only hope of escape.