Masaya is a husband living an ordinary life with an ordinary wife. One night, he discovers Aya, a married woman who lives next door to him in the same apartment building, passed out drunk and sleeping in front of the entrance. Not wanting to just leave her there, Masaya takes out the house key from her bag and lets her lie down on the bed. Aya squirms in discomfort, exposing her translucent white skin through her disheveled clothes. Hot blood spurts into Masaya's lower body. Having lost all sense, Masaya forces himself on her...