The narrator is a teacher whose only close friend is Sumire, an aspiring young novelist with chronic writer's block. Sumire is suddenly smitten with a sophisticated businesswoman and accompanies her love object to Europe where, on a tiny Greek island, she disappears "like smoke." The schoolteacher hastens to the island in search of his friend. And there he discovers two documents on her computer, one of which reveals a chilling secret about Sumire's lover.