To his mute sister's dismay, a young boy puts a dying rabbit out of its misery with a brick -- and soon the siblings end up in a world of nightmares.

Teenager Tsubasa Sato returns to the parallel universe where demons are out to kill every person with the last name of Sato.

An actor named Kosuke plays the role of Iemon in a stage version of Yotsuya Kaiden and his new lover Miyuki plays Oiwa. However, as they delve deeper into their respective performances, the line between fantasy and reality becomes obscured until the murderous, vengeful themes of the play bleed into their own relationship.

A tale of revenge, honor and disgrace, centering on a poverty-stricken samurai who discovers the fate of his ronin son-in-law, setting in motion a tense showdown of vengeance against the house of a feudal lord.