Being fucked in front of my husband's eyes

Yoko lives an ordinary but happy marriage with her husband she met at her previous workplace. Although modest, the two were both enthusiasm to set up a new home and live in a new place. The two go to say hello to the residents on the upper floor. The person who peers out of the open door with a strange smell was Kamata, who was run away from his wife and lives a widow. The happy everyday life of a couple is turned into a nightmare by the hands of a lonely rapist...