When Detective Superintendent Boyd encounters a woman unable to accept the explanation of her father's death in a terrible car crash, he takes on the case.
New evidence points to suicide but, when Boyd and the team exhume Perry Coleman’s body, DNA tests reveal some disturbing facts that call this into question.
Renovations at a Catholic church reveal a skull buried within the concrete for over 20 years, bringing the team into contact with the church’s community as they investigate.
The case drives Boyd to despair as it opens old wounds, whilst the rest of the team learns that the skeleton and a priest at the church may be related.
25 years ago, Annie Keel confessed to the murder of her husband and her neighbour’s son. When new evidence calls her confession into doubt, Boyd and the team must dig deeper.
Who else was present at the time of the murders? Boyd suspects Keel is covering for someone and forces her to revisit that fateful night in 1975.
When the body of a policewoman missing for a year is pulled from the Thames, Boyd and the team discover that she was being followed by two stalkers.
The team tracks down Debbie's married lover, but he denies killing her. Meanwhile, stalker Chris Redford is ready to confess, but Grace is not convinced he's the guilty man.