"Graveyard"isadarkbasement,whereaspecialunitworkstosolveunsolvedmurdersofwomen.CommissionerÖnem,willhavetofightmasculineprejudicesthatsupportmaleviolence.
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。
故事讲述成为了罪犯的哥哥葛城勇吾以及成为了警视厅搜查一课刑警的弟弟圭吾。弟弟因在杀人未遂事件中被测出了与嫌疑人的DNA跟自己完全一样而遭到逮捕。此时他想起了在20年前因被诱拐而下落不明的双胞胎哥哥。
