Social satire on steroids Bong Joon-ho's Parasite is perfectly written, filmed, and played - a bit too much at times (did we need this Ri Chun-hee's impersonation, or was that a bonus for Western audiences?).
No spoilers, but you're forced to understand the gimchi will somehow hit the fan, to want to know, among all possible worst case scenarios, which one will prevail, and to enjoy the ever darker humor first permeating, then overflowing this over the top gem.
If this brilliant epic echoes Im Sang-soo's 'The Housemaid' & Kim Ki-duk's '3 iron', Bong remains a league of his own.