Mitsu to Doku

This is a non-stop crisis suspense drama about a couple who are swept away by temporary emotions and end up having an affair with each other and are cornered by their respective partners. The main character, Kosaka Machiko, is a good wife who supports her husband and is passionate about her work, but when she discovers that her husband is having an affair, she also ends up having an affair with her junior colleague at the company.