Happiness (2021)

In an era where infectious diseases have become the new normal, a newly constructed apartment building in a sprawling city becomes a focal point for societal tensions. Within its walls, subtle psychological battles and class discrimination emerge between residents of the higher, sold-out floors and the lower, rented units. The city then faces an unprecedented apocalypse as a new infectious disease strikes, causing an unbearable, unabated thirst. Amidst this spiraling chaos, a decisive woman, known for her quick judgment and immediate action, must fight for survival. Alongside a detective, her former high school classmate and fake husband, whose career she once helped save, she confronts the escalating crisis. An expert in infectious diseases, a pharmaceutical executive and former information agent, becomes a key figure as society teeters on the brink. This apocalyptic thriller delves into human nature, societal collapse, and the desperate quest for happiness amidst ultimate despair.