在这部B.T.K连环杀手犯罪/剧情/恐怖片中,本片根据美国70年代初起令堪萨斯州人心惶惶的连环杀手“BTK”的真人事件改编，现年60岁的凶手雷德（Dennis Rader）曾任城市法规督导员和教会高层，有妻儿。当他俨如学者讲学般叙述怎样“钓上”受害人，然后开枪、刺插或扼死他们时，令闻者不寒而栗。其间，他曾大胆在杀人后报警，挑衅警方.。
Inspired by the real-life serial killer, B.T.K is the gruesome story of Dennis L. Rader, a murderer who systematically tortured and killed his victims for over two decades while evading the police for over 30 years. Living a seemingly normal life as a husband, father, security officer and church president, Rader's unquenchable thirst for blood ultimately led him to commit the most horrific crimes imaginable. Shocking and full of suspense, B.T.K is a grisly journey into the nightmarish world of a deranged killer.
