Cramming for medical school, Yuichiro lives in a town where radioactive contamination lingers, due to the effects of a nuclear criticality accident. After the death of his father, his mother and relatives urge him to carry on his father's medical practice. However, Yuichiro has been busy getting nowhere over the past few years and with gambling debts piling up, he has got his hands dirty by selling drugs to pay back the money he owes to a yakuza gang. Yuichiro has great respect for a film director who used to be a patient of his father's. When the film director develops terminal cancer, he moves to the town hoping that the radioactivity will heal him. His hopes are in vain. Unbeknown to his mother, Yuichiro is pulled in deeper. Yuichiro learns from a school friend, who has run away with with the gang boss's daughter, that a highly paid experiment is being run at the hospital where his cousin Shinichi works. Hoping to turn things round in one go, Yuichiro volunteers to undergo a clinical test involving exposure to radioactivity. Hanging from his neck is a USB memory, reminiscent of a dog tag, containing information about him. This impersonal information amidst the apparently normal everyday scenery represents the unseen anxiety, despair and impatience that assaults the youth of modern Japan.