故事围绕上世纪60年代，七个心怀秘密的陌生人，在一个破旧的有着黑暗历史的皇家酒店相遇。在宿命之夜，每个人紧握最后的机会。

　　乔治城原是一平静小镇，但忽然发生数起离奇凶杀案，而且尸首上都出现宗教仪式的钉痕；更残酷的是：凶手使用电击药品，使被害人造成麻□叫不出来；但被害过程的极限痛楚，仍有知觉！被害人自天真无邪的孩童到与世无争的神父均无一幸免，使得小镇人心惶惶，深恐惨遭毒手！乔治城的警长比尔，不断回想起十几年前被恶魔附身之神父戴明跳楼自杀的悲剧，但是不解：恶魔应该随著神父的牺牲而消灭，怎么可能又复出作祟？
　　电影相关：
　　·布拉德·道里夫扮演了一个在狱中的角色，当他被问及如何在不被察觉下进出监狱时，他答道：“It's child's play”。这句话在暗指他曾为1988年的《Child's Play》(灵异入侵)、1990年的《Child's Play 2》(鬼娃回魂2)和1991年《Child's Play 3》(灵异入侵少年军团)中的Chucky配音。
　　·影片灵感来自于闻名全美国的连环杀手The Zodiac。
　　·片中大学校长说他最喜欢的电影是1958年的《变蝇人》，而扮演校长的Lee Richardson出演了1989年的《变蝇人2》。
　　·影片编导威廉·彼得·布拉蒂(William Peter Blatty)曾希望片名能与他的小说《Legion》同名，在他的反对下，片名最终仍被定为“The Exorcist III”。
　　·最初本片中并没有Jason Miller加盟，实际上，卡拉斯神父的死尸是由布拉德·道里夫扮演，当时的场景是乔治C·斯科特正在手术台上检查神父的尸体。在试映之后，制片人决定影片中应该出现1973年《驱魔人》中的演员，于是威廉·彼得·布拉蒂重写了剧本，Jason Miller扮演了卡拉斯神父。
　　·影片改编自威廉·彼得·布拉蒂出版于1983年8月1日的小说《Legion》，但当初他并不愿卖出电影拍摄权，直到自己登上了导演的交椅。虽然片名定为“驱魔人3”，但小说和剧本中没有任何驱魔情节，制片方不得不在拍摄中刻意加入了驱魔场景。
　　·威廉·彼得·布拉蒂曾希望由约翰·卡朋特执导本片，但被后者拒绝。
　　精彩对白：
　　The Gemini Killer：I like plays. The good ones... Shakespeare... I like Titus Andronicus the best; it's sweet. Incidentally, did you know that you are talking to an artist? I sometimes do special things to my victims: things that are creative. Of course, it takes knowledge, pride in your work... For example, a decapitated head can continue to see for aproximately twenty seconds. So when I have one that's gawking, I always hold it up so that it can see its body.
　　杀手：我喜欢戏剧，特别是莎士比亚的，我最喜欢《泰特斯·安德洛尼克斯》，真不错。对了，你知道你在同一位艺术家交谈吗？有时我会对我的牺牲品做些特别的事，一些有创造性的事。当然，这需要学识，以你的工作为荣。比如说，一只被砍掉的头颅会继续存在视觉将近20秒，所以当我砍下一个人的脑袋，我总是拿着它让它能看见自己已经分离的躯体。

　　和许多独自在曼哈顿打拼的女孩们一样，阿曼达（莫妮卡·波特 Monica Potter 饰）胸怀大志却囊中羞涩，为了节省房租，她不得不和四个惊为天人的超级模特合租了一间公寓。刚开始，阿曼达的合租生活进行的并不顺利，她仿佛是跌落到了白天鹅之中的丑小鸭，处处力不从心，但逐渐的，阿曼达发现，表面看起来高高在上的“天鹅”们并没有她想象的那样难以接近，正相反，从她们的身上，阿曼达学会了如何成为一个更好的女人。
　　邻居吉姆（小弗雷迪·普林兹 Freddie Prinze Jr. 饰）是阿曼达的梦中情人，他的一颦一笑都令阿曼达为之神魂颠倒。一次偶然中，阿曼达目睹了一场凶杀案，而凶手不是别人，正是她朝思暮想的吉姆，无论如何都不愿意相信吉姆是杀人犯的阿曼达决心和室友们联起手来，查出真相。

　　绰号“笨蛋”的13岁男孩（布兰登·昆恩·亚当斯 Brandon Quintin Adams 饰）一家住在贫民窟。“笨蛋”的母亲身患重病，急需医治，而他们一家却被房东勒令马上搬走。为了守住房子并为母亲治病，“笨蛋”听取了勒罗伊（文·瑞姆斯 Ving Rhames 饰）的建议，计划到臭名昭著的房东家偷窃。坊间关于房东夫妇有很多传说，据称他们的房子里藏着无以计数的金币，还有人说这是一间恐怖的房子，路过的人都不敢扭头去看一眼。而终于潜入房东家后，“笨蛋”却发现这所大房子的阶梯之下，隐藏着无比血腥的秘密……

　　UCLA college student Jonathan Moore (Anthony Edwards) is playing a game called "Gotcha" (popular on mid-1980s college campuses as "Assassin" or "Tag"), wherein the players are all assigned a mock "hit" on another player by use of a harmless paintball gun. Moore and his apartment roommate Manolo go on a vacation to Paris, France. After touring some of Paris, in a cafe Moore meets Sasha Banicek (Linda Fiorentino), a Czechoslovakian girl. Eventually, Jonathan has intercourse with Sasha, losing his virginity.
　　Jonathan decides to leave Manolo (who is heading to Spain) and go with Sasha to West Berlin to spend more time with her. Jonathan believes that he is in love with Sasha. There, Jonathan and Sasha continue to have sex and even go to an Oktoberfest beer gathering. One night, Sasha tells Jonathan that she has to go to East Berlin to pick up a package. One night after arriving in East Berlin, Sasha leaves their hotel room and walks to dark street corner. There, Sasha meets a German man who tells her the location of the pickup of her package. Meanwhile, Sasha was being monitored by a Soviet agent, who was sitting in a car at a distance. During the day, Sasha tells Jonathan that if she gives him a certain message, it means that he has to leave East Berlin immediately. At a cafe, Sasha gives Jonathan a package and says that a strudel is inside. A little later, Sasha tells Jonathan to meet her at the butcher shop near their hotel. All of a sudden, a Soviet agent begins to chase after Sasha. Sasha decides to use Jonathan (who is holding her package) to unknowingly get the package over to West Berlin. Meanwhile, Sasha is taken by the Soviet agent and East German secret police.
　　Jonathan goes to Checkpoint Charlie to cross the heavily fortified border into West Berlin. At the East German customs search, Jonathan is stripped of his clothes and given a cavity search. Meanwhile, Sasha is stripped and searched for possible espionage evidence. Vlad arrives at the border crossing to search for Jonathan, however Jonathan passes the border safely before he can be captured. Once in West Berlin, Jonathan feels liberated by the Westernized society. In the hotel, Jonathan receives a message from Sasha to meet him at a specified location. Jonathan finds out that his hotel room was broken into and robbed of his traveler's checks. Soviet agents eventually find Jonathan in West Berlin and chase him throughout a public park. Jonathan jumps into a water canal and manages to escape from the Soviets and stumbles upon a German rock group headed for Hamburg, who offer him a ride to the airport.
　　The rock group successfully get Jonathan to the airport (using full-face makeup to sneak him past a checkpoint) and Jonathan finally arrives in Los Angeles Tom Bradley International Airport and to his apartment. Soon, Vlad and a band of Soviet agents arrive too in Los Angeles. Once home, Jonathan stumbles upon a film canister, which was planted by Sasha. Jonathan visits his parents and tells them what happened in Germany but they cannot believe a word of it and think Jonathan is on drugs. Jonathan decides to call the FBI then the Central Intelligence Agency for help. Jonathan returns to find his apartment broken into and looted.
　　The CIA officer tells Jonathan to give them the photo film canister. At the Los Angeles headquarters of the CIA, Jonathan spots Sasha who looks like she was working there. Jonathan eventually meets up with Sasha. Sasha admits that she is Cheryl Brewster, a CIA agent, originally from Pittsburgh. Out of nowhere, Vlad and his gang begin to chase Jonathan and Cheryl on the UCLA campus. Jonathan eliminates all the Soviets with a tranquilizer gun which he gets from the campus veterinary sciences building. The Soviets are arrested, the CIA agents thank Jonathan for his (indirect) help in obtaining the film, and Sasha tells him she wants to continue their relationship.
　　After they part, Jonathan talks to a pretty student who rebuffs him coldly. As she walks away, he aims the tranquilizer pistol and shoots her in the rear.

　　1939年，伦敦的珠宝大盗拉西特被警方逮捕，为了延迟纳粹德国对英国进攻，英美情报机构要求拉西特，前往德国驻伦敦的大使馆，盗出即将运到纳粹德国价值五千万美金的钻石，伦敦警方胁迫拉西特，如果他拒绝将会面临20年牢狱之灾，拉西特别无选择