After Armageddon, Crowley has too much time on his hands and all he can think about is the way Aziraphale said "I don't even like you".
Aziraphale lives a quiet kind of life, running a quiet specialist bookshop in one of the liveliest districts of London. He's content with his lot, happy with his friends, tolerant of his probably-human housemate, living vicariously through the gossip pages.
One day, a chance encounter with Anthony Crowley, lead singer of wildly successful rock band The Demons, threatens to turn his whole world upside down.