
Set on 100 storeys surrounding the luxurious Penthouse Apartment. Shim Su-Ryeon (Lee Ji-Ah) was born rich. She is now an exquisite upper-class woman, akin to the queen of the Penthouse Apartment. Joo Dan-Tae (Uhm Ki-Joon) is her spouse. He is a business and real estate success story.
Cheon Seo-Jin (Kim So-Yeon) is from an affluent household. She is conceited. Ha Yoon-Cheol (Yoon Jong-Hoon) is her spouse. He is a top surgeon at a general hospital and a driven individual.
Oh Yoon-Hee (Eugene) is from a low-income household. She works tirelessly to ensure the success of her children. She aspires to be a member of the upper class for the sake of her children.
Cheon Seo-Jin (Kim So-Yeon) and Joo Dan-Tae (Uhm Ki-Joon) plan their marriage and merging of their businesses, but they are both concerned about probable treachery by the other. Their adolescent children are dissatisfied with their new family. Joo Seok-Kyung (Han Ji-Hyun) is still in mourning for her mother Shim Su-Ryeon (Lee Ji-Ah).
Ha Eun-Byeol (Choi Ye-Bin) despises her new stepfather, but she still has feelings for Joo Seok-Hoon (Kim Young-Dae). Meanwhile, Oh Yoon-Hee (Eugene) begins her plan for vengeance by handing herself in to the police. The police conclude that Oh Yoon-Hee is not guilty in her murder case.
On the wedding day of Cheon Seo-Jin and Joo Dan-Tae, they are surprised by Ha Yoon-Cheol (Yoon Jong-Hoon) and Oh Yoon-Hee. Meanwhile, Logan plans his next steps from the US, while Bae Ro-Na (Kim Hyun-Soo) resolves to return to South Korea.
Lee Ji-ah, Kim So-yeon, Eugene, Um Ki-joon, Yoon Jong-hoon, and Park Eun-seok feature in the South Korean television series The Penthouse: War in Life. The series, directed by Joo Dong-min and written by Kim Soon-ok, tells the narrative of a real estate and education conflict in which everyone wants to be number one.
It explores the bond and vengeance of mothers who went to evil to defend themselves and their children. It will air on SBS TV on October 26, 2020.
With 5.354 million viewers at the end of the first season, the series was the ninth most watched Korean television series. From the first episode on October 26, 2020, to the final episode on January 5, 2021, the series ranked top in all-channel mini-series 21 times in a row.
With 5.69 million viewers at the end of the second season, the series ranked eighth among the most watched Korean series. From the first episode on February 19, 2021, until the last episode on April 2, 2021, the series ranked top in all-channel mini-series 13 times in a row.