六集惊悚剧《不可能的死法》讲述了警探凯蒂·索尔特的故事。她原本满足于侦办日常案件，直到四人被发现死于一张晚宴餐桌旁，而现场唯一的线索，是一只从其中一名死者口中爬出的蝎子。
在这起案件中，索尔特与首席调查员尼尔·康威督察搭档办案。索尔特冷静克制的办案方式，与康威全身心投入工作的作风不断发生碰撞。
随着调查陷入僵局，一个个秘密逐渐浮出水面，阴谋接连显现，越来越多人的生命受到威胁。两位探员争分夺秒，试图在为时已晚之前揭开凶手的真面目。

Having recovered from a shattering emotional breakdown, college professor Ben Marshall relocates to the countryside with his wife and young son, hoping for a fresh start. He has a teaching job lined up and a new home to move into; things finally look to be going Ben's way. Until, that is, he starts to feel that something isn't quite right in the house. Finding himself plagued by spectral visions, Ben becomes obsessed with uncovering the truth behind a local mystery that appears to be putting the lives of his family in danger