Already on opposite sides of Michael Hewes's custody suit against his mother, Patty Hewes (Glenn Close) and Ellen Parsons (Rose Byrne) prepare to face off in court after a cyber-hacker's revelations about insider trading expose damaging personal information that push an informant over the edge.
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.
性格直爽的警长米奇·福克斯是莎伦·莱昂内（《烈焰国度》角色）的继姐妹。她一边在小镇 Edgewater 的街道上巡逻，一边调查犯罪活动，同时还要应付前科累累的父亲和任性的女儿。
本作は、小さな花屋を経営して幸せに暮らす野山穂花が、1通の手紙をきっかけに疑心暗鬼に陥っていく“愛憎・闇堕ち”ミステリー。花屋「リリアス」を営む穂花は、6歳下の夫・雅道と充実した新婚生活を送っていた。「お互いの過去は詮索せず、今を大事にしよう」と誓って2人は結婚したが、ある日彼女のもとに「あなたの夫の秘密を知っています」と書かれた差出人不明の手紙が届く。不信感を募らせた穂花は、雅道の周囲にいる女性に対して嫉妬や疑念を抱き始め、徐々に心が崩壊。不穏な出来事が次々と起こり、負の感情は、裏切り、復讐、略奪に発展していく。
