Stefanie Martini is an English actress, known for her leading role in ITV's 2017 production Prime Suspect 1973. She also starred in Doctor Thorne, Emerald City, the 2017 film Crooked House, and the TV series The Last Kingdom.
On the verge of retiring, Detective William Somerset takes one last case, with the help of the newly transferred David Mills. Together, they discover a series of murders and soon realize that they are dealing with a murderer who targets people he believes represent the seven deadly sins.
