Parasite

At the start of the film, we are introduced to the Kims, a family struggling to live under impoverished conditions. When they get jobs working for the wealthy Park family, one-by-one, they see just how easy some people have it, and how much more luxuriously some people live. Throughout the film, they covet the lives of their employers, and get caught up in a struggle with Moon-gwang and her husband, who are also trying to benefit from the wealth of the Park family.