Episode 1

E1

As the CID reopen an investigation into three murders from 1973, DCI Paul Bethell tries to piece together a past that has haunted both him and a community for almost 30 years.

Episode 2

E2

With the swabbing operation set in motion, Paul looks to not only find his killer, but to eliminate individuals whose past has been defined by false accusations and rumours.

Episode 3

E3

Through groundbreaking, familial DNA technology, the team in ‘02 manage to locate the killer. However, without 100 per cent certainty, Paul may have to rethink his approach.

Episode 4

E4

As Paul searches for higher approval to proceed with Kappen’s exhumation, the team are concerned that his tunnel vision could leave them in a worse situation than they once were.