The film centers on Dr. Marcus, a renowned psychiatrist who has selected 6 severe mentally ill and dangerous patients from the Spring Valley Mental Hospital to interview as part of research for his new book. As Dr. Marcus interviews each patient, one by one the horrors they have committed begin to unfold. However, Dr. Marcus soon learns that there is one patient who ties them all together - Patient Seven.全部来源：【吉吉影音】【西瓜电影】【新版天堂网】【爱奇艺】【暴风影音】【华数】【优酷视频】【百度云盘】【哔哩哔哩】
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