Last week we left off with the absolutely batshit-craziness of Margaret’s “Bel”-filled diaries and the rumoured accusations of incest made by Laniet Bain against her father Robin.

And we’ll come back to all of that later in this episode, part 2 of our series on the Bain family murders, but not before we re-join David, as he’s being interviewed for the first time by the police, just hours after the killings…