When ill people begin drowning themselves, a medical supply salesman investigates -- and discovers a conspiracy to spread an infectious disease. Jung In-gi, Kim Dong-wan, Lee Ha-nui, Kim Myung-min, Jo Deok-hyeon, Moon Jung-hee, Kang Shin-il, Myung-min Kim, Jung-hee Moon, Dong-wan Kim, Ha-Nui Lee Added on Netflix 2023-01-10. Youtube Trailer