Ichido hashitai tonari no nyôbô(1996)

Michida Yazo is an ordinary office worker who has no interest in alcohol or gambling. His wife, Tomomi, is a nurse and prefers to work the well-paying night shifts, so the couple only have sex when Tomomi is tired after a night shift and Yazo has morning wood. One day, Mitsuki and her husband move in next door. However, soon after getting married, her husband, Motoharu, goes on a business trip overseas. Mitsuki has such poor taste that people say, "Your body is delicious, but your cooking is inedible." While Motoharu is away, she attends "Mitsu Keiko's Cooking Class" to learn how to make delicious food, but the instructor, Mitsu Keiko, is not only greedy for food but also for sex...