Shiomi Eiji is a florist. He is a single man with a young daughter named Shizuku. One day, he invites a blind woman seeking shelter under his shop awning to come in out of the rain. A ...

The drama tells the story of a group of seven university students who travel to a deserted island where a strange decagonal mansion stands. It was the scene of a grisly mass murder six months earlier, and events soon turn ominous.