Ade being out of the country when Adam and Grace were murdered gives him a good alibi. Has he set that up intentionally?
The first episode has set up loads of questions:
What did Grace's younger brother Jamie do that his family all seem to believe him capable of murder?
Why and when did Louise and Ade split up? Why have Louise, Rob and Claire totally cut ties with Ade? Why does Moira have such a low opinion of Ade?
Why does Moira dislike Louise, Rob and Adam so much? Can't just be that Grace was pregnant before marriage?
Was Adam the father of Grace's baby? Or might that have something to do with the murder?
Why are her family surprised that Claire is still in touch with Sam? How is Jamie able to see Sam's messages?
Why hasn't Anna's rapist been arrested? Did he "get off", meaning that Anna and Rob no longer trust the justice system?
I can't remember the name of the farm worker who stayed over the night of the storm. Does he have another connection to one of the families? Could he be the natural father of Grace or Adam? And therefore have a motive for killing their murderer? Or he could be in love with one of the suspects and be protecting them, or the father of one of the suspects etc. Come to that the same might be true of Bill.
Was Ade still in touch with Adam? Why didn't he react to news of his death?
Did the burglar commit the murder or just come across it? If he committed it was he paid to do it and by whom?
Soooo many questions.