Heaven and Hell once clashed in fire and fury. Now, they play cards in a roadside diner.

Cael, the angel, has lost faith. Malek, the demon, never had any. Their long war has settled into something stranger. An uneasy friendship forged in boredom and centuries of dead-end assignments.

But when one game of gin rummy turns into a gamble for global destruction, their quiet routine becomes something much more dangerous. The end of the world isn't coming with fanfare. It starts after breakfast.