This is the starting point of making Wanda Evil and the Villain for Phase 4.
The show is happening in Wanda's head. She is in a coma or something and being allow to dream up the perfect life for herself and this is what she is seeing. Now there are clues that the outside world is coming in with the radio talking and stop it glitches.
Ok but here is what I and thinking. I am thinking whoever has Wanda is keeping her cause of she Wants to be kept. She asked for this. Maybe by Hydra cause we saw the commercial. So right now she is building the perfect life for herself in her head and someone from Stark Labs or the Avengers will come and "Save Her" by the end of the show but by saving her, it will cause her to lose the World she built and Lose Vision again and that will cause her to become angry and loose control of her emotions and look to tear the world apart cause she can't have her world or finally seek revenge for Tony killing her parent,destroying her life and now being praise as the Hero of the World.
And BOOM!! I figure it all out on day 1.
It's obvious that what we're seeing isn't real. I don't know any comic backstories, so beyond that, they haven't given us much of anything to speculate.
I think we can infer a few things. I don't think she's constructing a perfect world for herself in her head as an escape from something terrible that just happened in the real world, but that is an interesting theory. This wouldn't be Wanda's paradise if given a choice, after all. No, I think she is being mind-controlled. I think the visions she is having that we are seeing as a delusion being cast on her like a spell to control her; to confuse and distract her from the reality of what is being done to her so that she won't fight back.
Her mind knows something is wrong, but the spell is imbuing her with instincts to suppress this. For example, in the first episode, neither she nor Vision knows what the heart on the calendar is about. She should know that is wrong, because like Vision says, he never forgets anything, and if she put it there herself, she would certainly remember. Yet she accepts the thrust of a domestic 50's sitcom that this mystery is the primary conflict of an episode. She tries to play it off that she could be a forgetful housewife disappointing her husband because that's what a 50's sitcom housewife would fear rather than questioning why in the hell she would be participating in this life at all.
I'm not sure what to think of Vision's presence, he might not really be there at all, but I also suspect the possibility that he went into her head to try to pull her out, and became stuck, too. That's because he is also given agency. He has the scenes alone at work without her. He doesn't know what he does, when he started, or why he's there, but like Wanda, he immediately drops this concern, and preoccupies himself with being a successful husband because that's what a 50's sitcom husband would care about.
The only strange moment in the episode is when the husband begins to choke, and Kitty keeps saying to him, "Stop it," over and over. In our sitcom, she appears to be saying it to her husband, the boss, which doesn't make sense, because obviously he doesn't want to choke, and that's not how a person would react to that situation. That's because in reality these are two people mind-controlled Wanda has been sent to hurt. She's hurting the husband, and his friend, the wife, is pleading to Wanda with increasing desperation, "Stop it." You're killing him. Stop it.
In the second episode, what is the first strange moment? When she is talking to Dotty. Wanda assures her, "I'm not here to hurt you." She replies, "I don't believe you." That's because Dotty is someone else in the real world who Wanda has been sent to victimize. This is why we hear the voice, "Wanda, who is doing this to you?" Could be Vision, could be another Avenger who is showing up trying to stop her from wreaking havoc where she is being sent to wreak it. It's someone trying to reach the real Wanda.
Who is controlling her? Well, with show's trailer as a cheat sheet, her neighbor, the witch, is the prime candidate. Notice she's also the one in the delusion who is able to control and persuade Wanda. She is the one who gave her the food to supply to the husband and wife that chokes the boss. Meanwhile, she's the one who points Wanda at Dotty, "She is the key to everything." Then Dotty's hand gets cut in that strange moment with Wanda.
How is she doing it? Could be her powers, but I think she is also using Stark tech. Remember that Hydra had stolen a bunch of Stark tech (and weapons) to use in their experiments that created Wanda and Quicksilver in conjunction with the Tesseract. I believe she's gotten her hands on some key Stark tech related to this that in some way enables her to penetrate Wanda's consciousness. Maybe Tony built it after he was attacked by Wanda the first time as a defense against her.
This will also somehow explain why a dumb piece of gum could mess up Vision. Obviously, it's not really gum. The gum is just a symbol for an attack or control on his consciousness in the real world.
Now, the part that has me the most confused is the weird beekeeper at the end. Wanda uses her command of probability to say, "No", and rewind time to avoid him. It could be that he is a friend, not a foe. The illusion presents him menacingly because he is a threat not to Wanda, but to the illusion itself, and the one orchestrating it. He is trying to break in to help. This could be why the illusionist desperately gave her a pregnancy. That is something Wanda desperately
does desire, because it's not something she and Vision can do in the real world, and so it increased her devotion to the illusion. She rejected the attempt to help break the spell because now she is more invested in the fantasy.