本剧根据Jeff Lindsay的小说"Darkly Dreaming Dexter" 改编，讲述了一名奇男子Dexter Morgan的故事。他从小饱受虐待和折磨，一位迈阿密警察收养了他。如今他也成为了迈阿密警局一名成功的法医。但由于自小的经历改变了他的内在，使他的杀人欲望越来越强并一发不可收拾。他无法抑制这种欲望，但却可以改变发泄的方法。所以他白天是个成功的警局法医，到了晚上就成了嗜血判官，追踪并残忍的杀掉那些逃脱法律制裁的穷凶极恶的罪犯……Based on Jeff Lindsay‘s novel "Darkly Dreaming Dexter," this new crime thriller tells the story of a strange man named Dexter Morgan. Once an abused and abandoned child, Dexter is now a successful forensics pathologist...but lurking just beneath his charismatic personality is a terrible truth. Dexter has corralled his innate homicidal urges into a closely guarded second career: He hunts down and brutally murders those vicious criminals who have managed to avoid the clutches of the law.DY1234.COM