本片讲述了，在30年代的美国，一个谋杀儿童的连环杀手Albert Fish的故事。 A solid thriller about Albert Fish (a very fine performance by Patrick Bauchau), the real life serial killer of children in 1930's America. Fish seemed a harmless old man, but in 1934 he was arrested as the murderer of several missing children he somehow duped their families into leaving him with (using an assumed name throughout). Part character study and part detective procedural, The Gray Man wisely avoids graphic horror and sensationalism (Fish's murders, for instance, are never shown on camera), and while it is rather conventional, it is nevertheless quite chilling nonetheless and it shows a director with a very keen sense of storytelling.

美国某小镇，有一条通往哈特利小学的丛林捷径，但自从上世纪40年代之后，就很少有人通过这里。镇上的人传言林中有一个凶恶变态的老头，许多起失踪案都和他有关。这条路俨然成为小镇上的禁区，而世代居住这里的哈特利家族则成为最大嫌疑人。