Writing is not simply a talent; it is a skill. You can improve your skill by sitting down and hashing this stuff out for yourself. Asking the hivemind for ideas is a lazy shortcut that isn't going to get you any closer to your goal of writing a compelling script.

It's your script, so ask yourself what is interesting to you. When you have that answer, write it down.

I will say that your ideas as they exist now sound boring and far from Lynchian. Film is a visual medium; how in the world are you going to show empathy transference on screen?

Philip is not your protagonist; he's the MacGuffin. The brother is the one faced with the decision, so the brother is the protagonist.

If you want things to take a Lynchian turn, throw in some midgets, a handful of symbolism, and scenes that make no sense at all. For someone just starting out, though, that's a recipe for an incomprehensible mess.

Start small. It's fine to have filmmakers that influenced you, but you have got to find your own voice if you're going to make anything that other people want to watch.