Adultery is Something You Want to Do No Matter How Old You Are

Original title: いくつになってもやりたい不倫

Shigeo and Yaeko, a middle-aged couple, are involved in a car accident one day. Shigeo dies, but Yaeko survives. However, it turns out that the two were having an affair. Involving both of their families, the chain of explosive love, lust and desire continues.