That has a lot more info than usual for these kinds of theories. Plus the majority of them come from the trailers and teasers. They make sense for the most part, even I had thought they were doing something with Peter's parents and having some inbred genetic thing that gets activated. That's what one of the trailers sounded like.

Dial M for Murder

I used to think this was a great movie. It's impeccably staged for 3D, and still the only good 3D film. The new Blu-ray release of the polarized 3D version should be awesome. The big flaw is that the film is bound by its stage play origins. Hitchcock working on one confined set is no problem, but being confined by the story is a whole other matter. Ray Milland essentially carries the film along with John Williams as the Police inspector. Fantastically made if a bit stagy at times.

3.5 balls out of 4 over-wound watches. Though why any sane man would want to kill Grace Kelly is beyond me...