该剧根据1996年前FBI探员约翰·道格拉斯（JohnDouglas）和马克·欧夏克（Mark Olshaker）的著作《心理神探：美国联邦调查局系列犯罪破案揭秘》（MindHunter: Inside the FBI's Elite Serial Crime Unit）改编。退休后的道格拉斯深入研究犯罪心理学，美剧《汉尼拔》（Hannibal）和《犯罪心理》（CriminalMinds）中的角色刻画也参考了书中的很多案例。
主要讲述了了一对母子二十多年来的情感纠葛，儿找母、母寻子的故事，折射出当今社会一些人在金钱和利益的驱动下失去对社会的责任感、家庭的温暖以及亲人的关爱。
As Leo's replacement Thomas Chamberlain arrives Nikki investigates the murders of Rachel Freedman, shot in the head, and her little autistic son Nathan, who was poisoned. Nikki rejects policewoman Anne Burchett's theory that Rachel killed them both but is perturbed when an impostor, claiming to be Rachel's sister, visits the morgue. At the same time the disfigured corpse of Eva Liron is discovered, killed with the same poison as Nathan. She had been the nanny to French hot shot footballer Isaac Dreyfus and was planning to blackmail him over a sex tape of them both. Jewish Isaac is a controversial figure due to his anti-Muslim sentiments but he denies ant part in the murders. Then another victim, Isaac's agent Mousa, is discovered dead.
夜幕降临，魔影共舞。 真正觉醒的夜魔侠（查理·考克斯 Charlie Cox 饰）将与金并（文森特·多诺费奥 Vincent D'Onofrio 饰）正面交锋，揭开纽约市权力风起云涌的幕后真相。
