Yet another British mini-series based on actual events. This follows a cold case that is taken up again due to advances in DNA technology and science. The small team is run by DCI Paul Bethel, who worked on the case the first time around. I confess I was a little confused at first, not immediately realizing that we were watching DCI Bethel in both time frames, past and present. It seems that had a third murder to add to the suspect.Somehow I started out thinking there were two separate investigations, one of which was looking at just the third murder. But once I realized my error I kept up with events just fine. If you watch a lot of British tv as we do you will recognize. Few good supporting actors in the cast. Since this is based on real events, it is funny to see some common police show cliches showing up, such as the detective so dedicated to his job that his marriage suffers. I guess chiches are overused because they are often accurate. Still the wrong and the acting were strong. As a side note, there is an accompanying documentary about the case that I expect to watch soon.