I've seen a few Miike movies and I know about this one (seen Happiness of the creepy family and the faery war one, I avoid the Beat Takeshi shit for my own reasons). I guess I'm just ready for this.
My favorite part is how victim #3 stands there for about 5 minutes watching Dad saw into his buddy's head until it finally occurs to him - "Hey this might be a potentially bad situation, maybe I should leave!"