顾清颜（崔一梁 饰）为找到杀父仇人莫先生而成为舞女，并与身怀家族仇恨的杀手叶一凡（韩东霖 饰）相识，两人成为合作关系。当她逐渐剥开迷雾时，却发现自己心中最大的仇人原来就是自己爱上的人，而叶一凡一直寻找的灭门仇人也将线索指向了顾家，两人在仇恨与爱情中纠结痛苦，却又无法控制的时候，叶一凡的另一个身份被顾清颜发现，顾清颜意识到原来所有美好带有目的，所有情深带有蓄意，于是虐恋升级，可她不知叶一凡早已为爱沦陷，直到一个人的出现让他们发现阴谋背后的真相，一切终揭开。
乔尔·拉撒路（山姆·克拉弗林 饰）的父亲乔纳森·拉撒路博士（比尔·奈伊 饰）自杀身亡，他很快就被卷入了一系列谋杀悬案之中，同时他还在努力揭开父亲之死和25年前妹妹的死亡之谜。
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.
