An unstable private investigator suddenly awakens on a subway train to find himself plunging deeper and deeper into a nightmare... that may very well be of his own making.

这是第一次也是唯一一次“恶魔附体”在美国谋杀案审判中被正式用作辩护理由的案件，来源于电影《招魂3》里的真实事件，收录了恶魔附身和谋杀的第一手资料，迫使人们反思对未知的恐惧。