What happens when a "gift from God" turns out to be a loan?

Once upon a time, a neighborhood in Buffalo, New York was mysteriously showered with $20 bills. Theresa, a young girl who everyone thinks is a saint, doesn’t have much trouble convincing her loose-knit found family that the money is a gift from Heaven. Years later, Theresa, who has become a nun, has an epiphany that it is time to pay the money back, so she calls the eccentric group together to repay the “loan.” The problem is, nobody wants to give back the money, nobody has the money, they don’t know to whom it belongs, and most of them can’t stand each other.