The story of Trevor Buchanan and Lesley Howell, found dead in the quiet coastal village of Castlerock, Northern Ireland. An apparent suicide - but all is not as it seems.
Until a killer confesses, police believe two heartbroken people died in a suicide pact.
2 mins
When two people are found dead, police suspect suicide - but all is not as it seems.
12 mins
A 1986 murder, Britain’s longest miscarriage of justice and a new hunt for a killer.
3 mins
Following Diane Sindall's final steps and a brutal crime that has haunted a community.
30 mins
The hunt for Diane’s killer uncovers another victim from the same night.
44 mins
While Peter Sullivan stands trial, Diane’s murder sparks anger and activism among women.
40 mins
Community whispers claim the police got it wrong and science helps challenge the verdict.
25 mins
In Peter Sullivan’s appeal, new DNA evidence is presented that challenges his conviction.
28 mins
With Peter freed, attention returns to the unanswered question of who killed Diane.
26 mins
New witnesses, old warnings and a Geographical Profiler reshapes what we think we know.
28 mins
