Long ago, a wealthy man stole an angel and hid her in a chapel, where she remains imprisoned to this day.
That's the legend, anyway.
A clerical student who's racked up gambling debts to a local gangster is given an ultimatum-deliver the angel his grandfather kidnapped, or forfeit various body parts in payment.
And so begins a whirlwind theological paradox-with the student at its center-in which the stakes are the necessity of God, the existence of destiny-and the nature of angels.