The tone and narrative of Disassembled is so wildly different once you acknowledge Billy and Tommy were always real.

If Wanda’s children were never real, then Disassembled is like a horror movie of a woman who lives a perfect, idyllic life with her husband and children. But her friends slowly start noticing something is off, and finally realize she’s been making up the existence of her perfect family, forcing her husband to play along, and even killed the nanny to cover up her lie. They try to get her help, but she ends up completely losing it, hunting them down and murdering some of them before being taken down herself.

But if Wanda’s children are real, now it’s the story of a woman whose friends slowly start trying to convince her that her children are fake, that the reality she perceives is a lie. The nanny murders her children and her friends force her into an insane asylum where the staff are in on it, until finally she breaks out and starts wreaking vengeance.