一群来自爱尔兰的工人阶级妇女，开启了一场前往法国卢尔德之旅。

The indomitable DCI Vera Stanhope, assisted by her trusted colleague, DS Joe Ashworth, steps up for another series of challenging cases. She investigates the mysterious death of a pensioner on a busy commuter train (On Harbour Street), unearths a thirty year mystery after a brutal murder on the sands of a seaside resort (Protected), unpicks the tragic last months of a failed novelist gunned down on a remote Northumberland moor (The Deer Hunters), and delves into the tangled life of a businessman found floating in the water under the Gateshead Millennium Bridge (Death of a Family Man). Inspired by the novels written by renowned crime writer Ann Cleeves, and filmed against a backdrop of outstanding Northumberland landscapes and atmospheric production, each enthralling story is enhanced by the captivating performance of Brenda Blethyn as this shambolic yet brilliant detective.

英剧《设得兰谜案》第三季已获得BBC预定，依旧由Douglas Henshall出演主角侦探Jimmy Perez，预计于2015年拍摄，2016年在BBC1播出。不同之前两季一案两集的模式，第三季将会用全部六集篇幅讲述一个完整的案件。