All the apartments within the complex get infected, except Building 101. The phone lines and Internet get disconnected, and they are all on their own. Sae Bom and Yi Hyun struggle with the constant conflict between the renters and owners inside the building, including the people outside. Meanwhile, their food depletes, and they are left with only one option, to go outside.
Casts:
Han Hyo-joo, Park Hyung-sik, Jo Woo-jin, Lee Jun-hyeok, Park Joo-hee, Baek Hyun-jin, Back Joo-hee, Moon Ye-won, Park Hyeong-su, Jung Woon-sun, Bae Hae-seon, Cha Soon-bae, Han Jun-woo, Park Hee-von, Na Chul, Kang Han-saem, Kim Young-woong, Lee Ji-ha, Lee Ju-seung, Han Da-sol