All unemployed, Ki-taek's family takes peculiar interest in the wealthy and glamorous Parks for their livelihood until they get entangled in an unexpected incident.

Three college students get lost in the seedy streets where they encounter a crazed gang of homeless derelicts that seizes them and one-by-one, horrifically kills all but one man. The surviving man escapes on foot, naked and unarmed, with a pack of depraved transients in pursuit, and only seconds away from capture.

After a Robbery at a jewelry story, a group of robbers takes refuge with a host in a shabby apartment building in the suburbs. But they don't know that in the basement hides an obscure alien creature with telepathic powers.