WARNING: The following contains spoilers for Marvel's WandaVision Episode 3, "Now in Color," now streaming on Disney+.
WandaVision has created quite the puzzle through its first three episodes. The questions are plentiful, ranging from how Vision is alive to who created this sitcom homelife that the titular couple live in. There have been a number of theories out there about who's behind this, with some pointing to Wanda, and the first three episodes have clues that support the theory that she's the one controlling Westview's citizens.
Along with rewinding events she doesn't like and ejecting "Geraldine" from the town, Wanda seems to be controlling how her neighbors behave. For instance, in Episode 1, Vision's boss, Mr. Hart, and his wife came to dinner, but what starts as a classic sitcom turns into a nightmare when Mr. Hart interrogates the couple about their past. Things get darker when he chokes on his food, and Mrs. Hart tells him to stop it. As she keeps saying, "stop it," she looks at Wanda, which is when Wanda grows serious and tells Vision to save his boss. Once this ends, dinner's over, and everyone goes back to "normal."
Something similar happens in Episode 2 when Wanda meets up with the neighborhood planning committee. At the meeting, Wanda talks to Dottie in classic sitcom fashion; however, when the radio broadcast surprises Wanda by asking her, "who's doing this," Dottie breaks character. She's frightened and asks questions, but when presumably Wanda destroys the radio, as well as the glass in Dottie's hand, Dottie acts as if nothing happened.
In the third episode, the hints that Wanda is controlling others grows stronger. While decorating the baby's room, a butterfly mobile turns into real butterflies, and Wanda says she didn't mean to do that. Later when she goes into labor, her powers go wild, even though Geraldine says there's probably a normal explanation; however, there are three key instance where the people in Westview act abnormal for the idyllic town.
For instance, Herb glitches, cutting through the brick wall of his garden as Wanda's distracted by the good news about her unexpected pregnancy. Later, after Wanda gives birth, Vision sees Herb and Agnes talking. This is the first time the neighbors act normal in front of him, instead of being like sitcom characters. They ask about Geraldine, and it seems they know more than they originally led on; however, they snap out of it and go back to caricatures. This happens while Wanda sings a Sokovian song, remembering her twin brother and breaking her own sitcom persona as well.
When Wanda is her self again, Geraldine also snaps back to reality, piecing together what's going on. That's when she asks about Ultron killing Pietro, and, like in the scene with the Hart's, Wanda grows frighteningly serious, casting Geraldine out of the town. It's likely when she ejected Geraldine that Agnes and Herb returned to "normal" as well.
There is a lot of evidence that Wanda is controlling her neighbors. She set herself up with a nemesis in Dottie, and it's only when the radio distracts her that Dottie snaps out of her cookie-cutter state. She gives Vision the classic sitcom boss, and it isn't until Mr. Hart chokes that Mrs. Hart breaks character. Finally, when Wanda's distracted by her pregnancy, babies and dead brother, the neighbors gain a small bit of freedom to be themselves.
If WandaVision is an homage to House of M, there is a chance Wanda has no idea she is doing this. Like in the comic, all she wants is a happy life, but she's been denied this throughout the MCU. When she almost found happiness with Vision, Thanos killed him. All Wanda wants is normalcy and peace, and in theory, she seems to have created just that, but she's controlling everyone around her to keep it from falling apart.
Written by Jac Schaeffer and directed by Matt Shakman, WandaVision stars Elizabeth Olsen as Wanda Maximoff/Scarlet Witch, Paul Bettany as Vision, Randall Park as Agent Jimmy Woo, Kat Dennings as Darcy Lewis, Teyonah Parris as Monica Rambeau, and Kathryn Hahn as Agnes.