Citizens from upscale Gangnam in Seoul start experiencing unusual and terrifying symptoms, devolving into inhuman creatures, leaving only a few survivors with the possibility to make it out alive. When a mysterious virus spreads in an exclusive Seoul district, people begin to exhibit horrifying symptoms and turn into flesh-eating monsters. Watch trailers & learn more. Citizens from upscale Gangnam in Seoul start experiencing unusual and terrifying symptoms, devolving into inhuman creatures, leaving only a few survivors with the possibility to make it out alive. Gangnam Zombie (Korean: 강남좀비) is a 2023 South Korean action horror film starring Ji Il-joo and Park Ji-yeon. This is Ji Il-joo's first feature film and Park's first in 7 years. [3]