October 4 and 5, 1986. The Ushiromiya family has gathered on the private island of Rokkenjima for their annual family conference. Chief on the agenda concerns the struggle for the inheritance assets of the ailing family head, Kinzo. But as the family is trapped on the island by a typhoon, they receive a letter claiming to be from the rumored witch of the island, Beatrice, and mysterious events begin to occur.