When elementary school teacher Kobayashi investigates the absence of one of his young pupils from the classroom, he finds himself at the doorstep of an anonymous suburban house that harbours a horrible secret, and into which all who enter are doomed.

A young man on a bicycle is turning a corner in front of an apparently abandoned building when he begins to hear the ringing of a cell phone. (A prequel to the first version of Ju-on, 2000.)