If this was actually about two art robberies, then it would maybe make a little more sense. But even then, I don't see it. If Casey morphed into Rose, then I guess I get it a little bit, but still most of the movie went right over my head. I'm usually pretty good at following this kind of stuff, so all I can say is it must have been badly done. I don't even know who was still alive at the end, apart from Casey.