Mike and Karen are nearly-40-somethings that are giving their relationship another go, five years after they split. The pair were always meant to be together, but Mike's ambition to become a professional entertainer meant that he was never at home. Now in his late 30s, Mike has realised what's actually important to him - he's given up life on the road to come back to Scarborough and give their relationship another go.

It starts on a brutal murder before rewinding back 15 days to find out why and how, and most importantly who was responsible.

This gripping five-part drama follows a tense police surveillance investigation into a tight knit Manchester community and explores whether it is ever possible to observe the lives of others with true objectivity and zero effect.