The Secret S1, E3

The true-crime story of a respectable dentist and pillar of the community, who became a killer in partnership with a Sunday school teacher.

Cast:James Nesbitt , Genevieve O'Reilly , Patrick O'Kane , Nina Woods , Murray Speers , Jack Erdis , Sophie Mellotte , Stuart Graham , Laura Pyper , Katherine Kingsley , Glen Wallace , Jason Watkins , Alan McKee , David Pearse , Rhys Dunlop , Amy Shiels , B.J. Hogg , Patrick FitzSymons