In the 17th century, two Portuguese Jesuit priests travel to Japan in an attempt to locate their mentor, who is rumored to have committed apostasy, and to propagate Catholicism.

In mid-19th century Edo period, a masterless rōnin named Mokunoshin Tsuzuki resides in a peaceful village among those he helps. However, as the prevalent peace and tranquility are sure to be replaced by war and conflict across the land, the swordsman feels restlessness creeping upon him.

A murder game with four men and three women has begun on an uninhabited island. It's a substitute for killing each other and raping each other. However, a paranormal phenomenon occurs on this island, and the game becomes more scary ....