Love Thy Neighbour

S1, E3: Betty's mother is ill, and Frank is sent across the road to call for a doctor. He calls upon his neighbour, a TV script writer, and asks to use his phone. After a certain amount of confusion over house numbers, the doctor arrives and declares there is nothing wrong with Betty's mother. Meanwhile, Frank realises he has unwittingly taken the writer's script and decides to return it. Whilst he is out, Betty locks up and goes to bed. Not wanting to disturb her, Frank decides to break into the house. What can possibly go wrong?