The Penthouse S01 E08 Episode 8

"100th Floor Bloody Penthouse."

Su Ryeon intentionally allows Yoon Hee to see her husband having an affair with Seo Jin. Using Yoon Hee’s sympathy toward her, Su Ryeon moves on with her plans in bringing down Joo Dan Tae. The first step is by purchasing the building in the center of Myeongdong’s new shopping center site.