Now that Karyn Kusama‘s The Invitation (Drafthouse) has opened with a 92% Rotten Tomatoes score and done pretty well and has been viewable on iTunes and Vudu for a couple of days, what’s the verdict? I didn’t say a damn thing the other day for fear of giving anyone the slightest hint of what it’s about, but…well, I can say this. It’s an expert slow-burner, and all the more impressive because it’s all about hints…about what you can sense might be happening without anything in the way of precise evidence. But when it all starts to pay off with some third-act violence, I have to say I felt a teeny bit let down. It seemed a little too familiar. But then came the finale and I thought “wow.”