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. 　　译文(2): 影片以著名精神病学家马库斯博士为中心，他从斯普林谷精神病院挑选了6名严重精神疾病和危险的病人接受采访，作为他新书研究的一部分。随着马库斯医生采访每个病人他们所犯下的恐怖行为一个接一个地展现出来。然而，马库斯医生很快发现有一个病人将他们联系在一起，那就是七号病人。