For as long as she can remember, Sakiko (Naomi Nishida) has been fascinated with money. As an adult, she works at a bank where she handles it all day but has grown discomfited as none of the money is hers. After being kidnapped during a robbery of her bank, the getaway car crashes, killing everyone except Sakiko and throwing the money into a nearby body of water. With the police convinced the money was destroyed, Sakiko sets out to recover the lost stash, which requires plenty of preparation.