Over the last decade plus, Joon-Ho Bong has been mastering his craft quietly and judiciously. Like Chan-Wook Park, the other mainstream Korean filmmaker whose films have snuck into American pop culture, Bong's *Korean* films have just gotten better as his voice grows clearer.

PARASITE is an extraordinary film. It tells a twisty story that constantly evolves - so much so that most critics don't even want to give any of the plot away. Its performances are superb (why does Song…