The Secret — Season 1
4 episodesFirst aired 29 April 2016
A dentist and a Sunday school teacher begin a torrid extramarital affair that leads them to make a murderous pact. Based on a true story.
E1Episode 1
8.0Apr 201651m
When Colin Howell and Hazel Buchanan meet at their local Baptist Church in rural Northern Ireland, they start an affair which will have cataclysmic consequences.
E2Episode 2
8.0May 201651m
Colin and Hazel carry out his plan to kill Lesley and Trevor, and stage it to look like a suicide pact. But will the community and the police believe their story?
E3Episode 3
8.0May 201651m
As the inquest approaches, Colin and Hazel have to hold their nerve. But even if they do get away with it, can their relationship survive?
E4Episode 4
9.0May 201651m
The past catches up with Colin as he is finally driven to confess his crime. But when Hazel pleads not guilty, will Colin take all the blame?