Recently, Korea has produced some of the most critically acclaimed disaster/zombie sensations in recent history such as Flu, Train to Busan, and Kingdom. Unfortunately, this movie is far from any of these. With such little backstory, there is hardly any emotional depth to the story - the terror, the humanity, the urgency which made these productions so thrilling are incredibly lacking. Rather, all of these elements serve as the backdrop for a romance theme. As much as I love the cast, the directors are clearly just bandwagoning and using them for quick money. Incredibly disappointing.