The Flu (2013)

In a town near Seoul, an insidious epidemic grips the city, unleashed by the smuggling of illegal immigrants with mysterious symptoms that take hold of the residents, igniting a rapid airborne contagion that pushes the city into chaos and forces a government-ordered lockdown as infections increase. That's when an infectious disease specialist and a fearless rescue worker team up to fight this unseen enemy - will they be able to overcome the fate that hangs in the balance between hope and an unprecedented threat?