Japan is known as one of the safest countries in the world.  However, Japan is not adept at uncovering the real cause of death.  Perhaps many deaths caused by criminal acts might have been condoned.
This drama seeks to unearth the buried truth by finding clues from voiceless words of the dead.
Tamami Odate (Makiko Esumi) has just become a special associate professor of forensic pathology at a university.  Tamami, a person of strong conviction, is never afraid of stirring up trouble with people around her.  She is “the most powerful, reckless woman,” a real rusher just like a bulldozer.
On Tamami’s first day to the university, she bumps into a jogger, who suddenly collapses.  The man dies shortly after, which everyone assumes is a natural death.  But Tamami counters by saying, “We will never know the real cause of his death until we conduct an autopsy.”  The detective, Chika Kamatsuda (Satomi Ishihara), gets irritated at Tamami’s behavior, and asks Tamami’s colleague Junnosuke Nakura (Goro Inagaki) instead to write down “Death by Disease” on the postmortem certificate.
At the same time, Tamami was asking the jogger’s wife to agree to an autopsy on her husband’s body, but for some reason the wife refuses…
Can the truth behind his death be brought to light?

一向被称为治安甚好的日本，死因调查率却是发达国之中最低水准。其实有很多犯罪死因可能被遗漏…。故事以死者留下的无声的心愿为线索，挑战被黑暗埋葬的诸多棘手事件的真相。
故事的舞台是法医学界。就任于大学特别副教授的法医学者大达珠实（江角真纪子饰）是不怕与周围起冲突，抱着坚定信念勇往直前，犹如推土机似的「最强的暴走女」。
第一天出勤日，遇到了晨跑中发病晕倒的男性。不久男性因抢救无效在医院死亡。最初男性的死因被认定没有疑点，但珠实却说「不解剖就无法知道真正死因」，主张死因不详。对此恼怒的刑警釜津田知佳（石原里美饰）求助与珠实在同一大学就职的名仓润之（稻垣吾郎饰），让其签字确定「病死」的死体检验书。另一方面，珠实则建议死者的妻子进行司法解剖，但不知为何被拒绝。
究竟男性的真正死因是什么呢…。