The plot.... (MAJOR SPOILERS!!)
#1: If I were about to be wrongly convicted and executed, protecting someone's virtue would likely be the last thing on my mind. My attitude would be, "I'll make it up to her later, but right now I'd kinda like to not die." Shame and humiliation are terrible, but not as terrible as losing your squash.
#2: The filmmakers made a mistake in killing off Anton, the ringleader, first. For a truly satisfying sense of justice for Hans (and the audience), the most evil person should also be the most punished. Anton watching Johann and Karl get it first (and knowing he was next) would have accomplished that quite well.
#3: And just how did Hans know that the trio of fops were the real culprits? (I know that a few of you might be getting ready to maybe-this and maybe-that me, but remember: if the movie don't show it, the audience don't know it.) The filmmakers should have given Hans some kind of revelation that they were guilty. You know, Hans looks over at the trio just before his neck is secured in the lunette. Anton is smiling nastily, and the other two are hanging their heads and looking guilty. Cut to Hans's face, perhaps with a CU of his widening eyes, so that we see he understands.
#4: The ending is too abrupt. A Howling (Howling the First, that is) ending would've worked here. Christina throws herself into the raging river. Victor walks away, crestfallen. Fade to black. Next and final scene is subtitled London. Another trio of boisterous and disorderly dandies is raising Cain in a pub, maybe inflicting a little verbal abuse on a not-quite-beautiful barmaid. The camera pans over to a corner booth, and there sits Christina alone, watching the proceedings with a little smile on her face. She and Hans are far from done, it seems. Fin.
If I had the bucks, I'd remake this movie, along with Children Shouldn't Play with Dead Things and Psychomania.
The Falcon flies