When the minister of construction minister's grandson disappears amid
protests against the dam project in Hinamizawa, detective Akasaka is
sent from the Tokyo Police to investigate. Posing as a tourist, Akasaka
becomes fast friends with Rika Furude, and the little girl almost makes
him forget that he's on a mission to find a kidnapper! But the
sightseeing tour takes a sudden turn when Rika delivers a grave warning:
Leave Hinamizawa...before you come to regret it...