5/5 Fear of never waking up turns to fear of waking up as Carl starts to stir.
BBC Radio 4 Extra
4/5 Panic kicks in as Carl's dream-world dissolves into a void. Will he ever wake up?
3/5 As Carl gets used to his coma world, he looks for triggers to wake him up.
2/5 Carl fears the attack has caused brain damage, as he keeps having blackouts.
1/5 A young man is attacked on a train late one night and knocked unconscious.