Nice and quick, that's how I like my silent movies. It would be neat to have been around when this first came out just to see the reaction to all the fx. I imagine it blew people away.
Another short one (50 min.) Ozsploitation about woman whose car breaks down and is stalked by a backwoods guy who has a cabin full of hungry rats. This was apparently banned in Oz so knowing that you wondered how far were they willing to go with stuff (why are you showing me cats in cages in a cabin full of hungry rats?) which kind of added to the tension.
WARNING: spoilers below
It doesn't do anything like Men Behind the Sun but it felt like it might - nothing happens to the cats