Compilation film with new content.

In today's world full of wondrous technological innovation, the unnatural and mysterious sometimes appear even more horrifying than usual. But despite how far society has advanced, the fear of the unknown always remains. The unfortunate participants in Kowabon find themselves in such a predicament, experiencing the supernatural through their everyday technology. From a frightening sight caught on a parking garage camera to a video chat that takes an unexpected turn, the victims struggle to escape that which haunts them. However, what awaits these doomed souls may be a fate even worse than death...

Whether it is investigating stone shrines, tracking rumors, or simply playing hide and seek, Koyomi Araragi is always there to fulfill the requests of his friends from both the human and supernatural worlds. In this series of short stories, Koyomi helps each of the girls in his cohort solve a mystery or kill some time, all while slowly unraveling the truth about his town and its many supernatural occurrences.

Half a year has passed. Arriving in the Iron Fortress, Ikoma and Mumei set foot in Unato: another ravaged zone that fell into the grip of the deadly Kabane. In this war-torn zone, the group fends off more dangerous Kabane that are attacking with patterns they had never seen before. The Iron Fortress crew eventually meet up with a survival group which requests their aid in reclaiming the zone. The newly forged alliance ventures deeper into the area of the castle and investigates the peculiar case of these new Kabane. But their search for answers unearths truths that are far more horrifying than they imagined. Forced to confront the reality behind the Kabane, Ikoma, Mumei, and their allies come to realize the despair buried within Unato.