I ended up watching it and could tell from the first few minutes that it was originally a stage play. It was surprisingly decent and the two actors put in a good turn and manage to remain believable even with the revelations of the second half. The birdwatcher guy is a bit of a stereotype but that really added to my overall enjoyment as he spouted tales of power tools and sleeping under his model railway when his relationship with his wife went off the rails. It was a good way to spend a couple of hours.
Where's my cake, Bedelia?