4 August 1977, village of Yonaki. In this small mountain hamlet cut off from the rest of the world, a teenager receives a black envelope. Inside, an invitation to a mysterious "play of the King" accompanied by a first macabre challenge: all the inhabitants of the village of Yonaki aged 10 to 20 will have to touch a human corpse before the end of the day under full of punishment by the King... For the 32 villagers, this is the beginning of a deadly failure against an invisible and all-powerful enemy!