You have the blood of a beast in your body. Since childhood, Mishio (Maho Tomita) had been told by her mother that she would attack and eat humans after her twentieth birthday. Mother and daughter lived together, the mother as a caretaker of a summer resort. The lodge is now off-season and empty, but a man breaks in late at night... The man (Satoshi Nikaido) claims to be Mishio's father and explains that it was all her mother's belief and that Mishio has no animal blood in her veins...