The investigation ramps up and fans are treated to an array of guest characters who join Jess and Sunny along the way, including Melinda Ricci (MyAnna Buring), Martin 'Marty' Baines (Maximilian Fairley), Dot Baines (Michele Dotrice), Asif Syed (Elham Ehsas) and Juliet Cooper (Victoria Hamilton).
So far this series, Sunny and Jess have discovered human remains on Whitney Marsh, with the dynamic duo soon linking the body parts to an on-going missing person case.
Unforgotten writer Chris Lang has taken to social media to respond to fans who have criticised the show after season six aired, leaving viewers divided over its content.
Last week, the series kicked off with a chilling case as the two detectives got to work at finding out what had happened to a dismembered body found on Whitney Marsh.
I certainly didn't write it thinking an audience would like all the various positions taken in the story, how could they, we are a country divided, but is it a story that provokes thought and respectful discussion?