The Penthouse 2: War in Life 1 Episode 16

After successfully framing Oh Yoon Hee, Cheon Seo Jin and Joo Dan Tae decided to get married. Their engagement party is interrupted by Oh Yoon Hee and Ha Yoon Cheol, who has just come back from the United States. As the secrets unveil, the relationships among the people at Hera Palace are entangled, yet another mysterious figure appears and confronts them.