最近出现了一起凶徒连环杀人案，最令人恶心的是，凶徒每次作案后都将被害者的喉咙割走。FBI探员威尔（爱德华•诺顿 Edward Norton 饰）负责此案的侦察，经过详细调查，威尔分析此人每次都是将被害者的喉咙割走吃掉，然而却没有找到任何凶徒的蛛丝马迹。威尔向患有精神病的犯罪心理学家汉尼拔（安东尼•霍普金斯 Anthony Hopkins 饰）求助，希望汉尼拔能刻画出凶徒的犯罪心理以助破案。 　　不料汉尼拔精神病发，意图伤害威尔，最后被关进了精神病监狱，此案也就不了了之。多年后，威尔又遇到了一起相同的谋杀案。虽确定了犯罪嫌疑人，但若想清楚推敲出此人的犯罪心理，以将其乘之于法，威尔只好再次找到了汉尼拔。FBI Agent Will Graham has been called out of early retirement to catch a serial killer, known by authorities as "The Tooth Fairy". He asks for the help of his arch-nemesis, Dr. Hannibal "The Cannibal" Lecter, so that he can be able to catch "The Tooth Fairy" and bring him to justice. The only problem is that "The Tooth Fairy" is getting inside information about Graham and his family from none other than Dr. Lecter.