In the original script actually there was a trap down in the floor, but we were like, ‘Wait a second.
It’s actually under the next door’s house – it’s a tunnel that connected with the other house that’s abandoned next door and that’s the cellar he was using.
By the time the police shows up, they never find her because that part of the cellar was more concealed.
So the trap door she would walk by it and then a hand would come out and grab her leg and drag her in.