故事的女主人公是一名优秀的犯罪心理学专家，她在一家专门治疗精神病的机构工作。这里面囚禁着各种有精神病的女犯人，女主人公每天都要面对这些危险的人。女主人公对自己的生活和工作都十分满意，直到一件事情的发生打破了这平静的一切。在一个早晨，她醒来后发现自己的老公已经死去，而自己直接成为了这场凶杀案的嫌疑人。面对这突然发生的一切，女主人公十分不解，她想知道究竟发生了什么。于是她被关进了女子监狱，她以前是这里的管理员，现在她却成了这里的犯人，她努力地回忆着那天晚上发生的事情，可是她只能记起一个模糊的女人身影，其他的一概想不起来。在医生的介入下她分不清是自己被冤枉的还是一个精神病患者，慢慢的她发现自己陷入了一个陷阱之中，而制造这个陷阱的正是她以前负责的一个病人.....

The heroine of the story is an excellent criminal psychologist who works in an institution specializing in the treatment of mental illness. There are all kinds of mentally ill female prisoners imprisoned here, and the heroine has to face these dangerous people every day. The heroine is very satisfied with her life and work, until something happens that breaks all this tranquility. One morning, when she woke up, she found that her husband was dead, and she became a suspect in the murder. Faced with all this sudden happening, the heroine is very puzzled, and she wants to know what happened. So she was put into a women's prison. She used to be an administrator here, but now she has become a prisoner here. She tried her best to recall what happened that night, but she could only remember a vague figure of a woman. I can't remember any of them. Under the doctor's intervention, she couldn't tell whether she was wronged or a mental patient, and she gradually found herself in a trap, which was created by a patient she was in charge of...