A creature action thriller series about the desperate survival of the survivors among the mutant humans who drank a mysterious black smoke from the sinkhole and soon turned into monsters and quickly became a pandemonium.

Kim Ok-vinas Lee Hwa Sun
Lee Jun-hyukas Yoo Tae Han
Yoon Jung-hoonas Woo Sang
Park Keun-rokas Choi Seung Tae
Jang Sung-wonas Lee Young Tae
Lee Ha-eunas Yoon Saet Byeol
Kim Byeong-gias Choi Gyeong-su
Oh Yu-jinas Han Dong Rim
Song Sang-eunas Song Sang Eun Kim Seon Nyeo / "Sunnyeo" / "Madame Kim"
Lee Ye-bitas Jung Do Yoon