I've really enjoyed series three, and I properly got bored with series 2 and the trial.
A few people I've been chatting to have a theory that the rapist is Rory (well, the vicar, I don't know his name, I've been referring to them all by other roles or their actors) just for sake of a twist but that strikes me as unnecessary and out there.
I'm currently going for the husband Jim. Obvious in terms of all things pointing to it, but hey, if this is about realistic storylines, just because they had consenting sex some times doesn't mean he's not capable of it.