Jack Lawrence and Jimmy Dunne were once, briefly, enemies at opposite ends of a gun on the Irish border; now their lives have become inextricably mixed. They are together on a chat show whose host wants a sob story with a happy ending, but gets something entirely different.

'Please don't slam your door - we have a delicate child', but when the baby cries, Deb ignores it. There is a secret which is destroying Deb's marriage to Greg. Only she can save it - only Deb can unlock The Dark Room.