The Flu

Flu (; alternatively titled The Flu) is a 2013 South Korean disaster film written and directed by Kim Sung-su, about an outbreak of a deadly strain of H5N1 that kills its victims within 36 hours, throwing the district of Bundang in Seongnam, which has a population of nearly half a million people, into chaos. It stars Jang Hyuk, Soo Ae and Ma Dong Seok. Plot Brothers Ju Byung-woo and Ju Byung-ki are smugglers in Seoul who find that illegal immigrants have died in a shipping container from an unknown illness. They take sole survivor Monssai and cellphone video of the bodies to show their boss in Bundang, but Byung-woo becomes sick and Monssai escapes. The brothers go to a clinic where the contagion is passed on to others who spread it throughout the city. At the Contagion Center in Bundang, Dr. Kim In-hae is reprimanded for losing important data when her car fell down a mine shaft the previous day. Her bag is retrieved from the shaft by ERT members Oh Ji-goo and Bae Kyung-ub. Ji-goo answers her phone and delivers the bag to In-hae's daughter Mi-reu. Byung-woo's condition worsens and he begins vomiting blood. His brother takes him to an emergency room, where he is isolated with an unknown flu. Called in to help, In-hae finds the cellphone video and theorizes that conditions in the shipping container allowed the virus to mutate. Byung-ki refuses to answer questions about the container. Byung-woo dies, and Byung-ki exposes several of the hospital staff while struggling to get to his brother.