This show clearly wants to seem two things: smart and creepy. Don’t think it accomplishes either.
For being smart it wants us to close our eyes on quite a few things. Pretend things are not there, pretend other things make sense. But most importantly, it wants… No, it NEEDS us to believe people in this world are plain stupid or blind. Or maybe both.
One of the twins is always hiding and most of the time kind of in the open and close to the other one. Even if we assume the hiding twin is not visible (and there was a moment, when dad should have noticed him for sure), there is a thing called “presence”, we can feel people around us, especially during stress and adopting a child is stress. …