Two men, dressed in tight-fitting Santa outfits, rob a bank and stash the money in a coin-operated locker at a subway station. Somehow, Koichi, a street musician, ends up with the key to the locker. However, unlucky Koichi has a series of accidents that leaves him unconscious in a river, with the key in his stomach. Unexpected twists and turns allow the path of these men, along with a bickering pair of cops and a trucker with a deluded devotion to his Lord, to collide. But who ends up with the key?