Sorry it took so long, but here it is.
So like I said, I really like this futuristic story and I think it has a lot of potential.
Notes/opinions:
In the beginning, it gets confusing when we keep cutting to different things until I realize it's Stu watching TV through 3d glasses (pretty cool idea, 3D glasses and nodding to change channel).
You should have some sort of channel switch to make it more obvious that someone is watching TV.
Flashback at beach, to me, it is just for a sappy moment and I don't get anything new for the unfolding of the story. In my opinion, you don't need it.
When Stu is dying and has those flashbacks with the girl, they are okay (meaning I like it) - they do show what we wanted to see when we first witnessed the first double naked on his lawn - but again, I hate flashbacks (personal decision) I think it's a cheap way to tell story, but when done well, definitely.
NOW - once I discovered that these where all visions of the future, my opinion on the story changed.
I definitely love this part a lot more.
I still think you should include future Stu, but towards the middle of your overall story. I think it makes the story slow and very enigmatic (which could be the point), but it's confusing and slow paced, and then he wakes in the bathtub with a scar on his head. That's when the story started for me. Anything before that moment I would have discarded. I know what you were trying to do, but the timeline is very confusing.
You have future and past happening, with no reference of the present, only later. I would start with present and THEN alternate between them.
When Stu is curious about what Teddy is crying about, we as the audience get very curious too. I think Stu entering the house and going into the bathroom and seeing what we are curious about, kinda ruins it.
What if he doesn't walk in the apartment and peeks throught the open door INTO the bathroom, where you can only see two feet, up to calf, lying on the ground. We want to know more!
Now the Police marches up the stairs. More commotion. Officers go into the apartment into the bathroom. Stu tries to see what's going on. Now with the officers inside the bathroom, it's impossible to see anything, other than the officers lifting someone up from the floor.
That way when Teddy first sees his mother being dragged out, he can panic and get shot in result of his irrational decision of trying to reach the officer's gun in desperation.
I would have killed Meryl, because the police are cruel - totalitarianism.
But not killing her makes the police a little nicer, even though they are bouncing, leaving Meryl to mourn over Teddy's dead body and the fact that she called the police to HELP Teddy and killed him as a result.
That's it for my notes. If you have more, I'd like to continue reading the story. I thought it was really good and captivating.
Sorry for the ramble.