Wow. Wow. Wow.
But Deveti Krug shifts boldly in subject matter in the middle of the third act, and the ninth circle of the title turns out to be a literal section of the camp and not a literary reference to treachery. (Incidentally, Peter Weiss's The Investigation uses the circles of the Inferno as a formal way of tracking through the camps and the Nuremberg trials, and in the play we move further and further inside the camps.)
Because the movie shifted so drastically, I really wasn't prepared for the punch France Štiglic's movie delivered, and I ended up truly stunned by The Ninth Circle. Boris Dvornik, who plays the male lead, is outstanding in this.