A certain young couple's apartment. As the husband relaxes, his wife speaks to him. Tomorrow, on the weekend, this couple is going to visit his mother-in-law who lives in the countryside. The next day, the son-in-law visits his in-laws' home and there he is captivated by the beautiful mother-in-law, Fumie... In other words, it's a forbidden love between Fu○ and Ma○, right under the wife's nose.
