俏皮女佣忙完家务到卧室等待主人

　　一群十几岁的少年庆祝一个本地连环杀人犯的忌日，突然发现他们自己与这个困扰的城市传说的现实面对面。

2025年，在鹿儿岛县与冲绳县，搭载着配备手术室的特种车辆的渡轮已开始进行试运行。赴任的喜多见与夏梅在离岛从事医疗工作。某日，鹿儿岛县的诹访之濑岛发生火山喷发，为营救岛民，他们毅然挑战这项九死一生的任务。

Four friends wanted to get away from it all for a birthday celebration in a remote country house, but when a mysterious injured man turns up on their doorstep telling tales of a city ravaged by a mysterious epidemic and the looters who have pursued him, the friends rally to help. As the night progresses, it becomes clear that all is not as it seems, plunging the friends into a battle for survival that challenges their deepest fears.