Billy the Hopper is a retired thief at the age of forty-eight who has been a faithful and diligent employee of a fashionable garage for the past year. Since he married his wife, also a minor thief back in the days, they decided to give up their criminal past and live the life of honest people. However, on a Christmas Eve of all days, Hopper slips and steals a pocketbook from a fellow passenger on a train, which sets off an incredible chain of events. In attempt to redeem for his new sin, Hopper keeps committing one misdeed after another, tangling himself more and more.