I am sooooo good at puzzle tutorials. Anyways...
1: Make 4 frames of a puzzle with 3 buttons with a knob below.
2: The first 3 frames make a text that says, 'It doesn't work.'
3: Then make the left button (on the 2nd frame) dark, as if inverted.
4: Make it on the first frame so that you can push the left button.
5: Continue doing this up to the last frame. Then make the knob able to open up to the inside of the house or building. Here's a few examples.