Alan, Kate and Murray get themselves separately locked in and have to be rescued.

Alan is going out with a posh woman who has recently taken over an art gallery. She spots some paintings in Alan's flat, which were done by Kate's primary school pupils, and Kate passes them as her own.

Alan and Kate leave the flat while Murray is in the bathroom. However, the finds himself trapped inside and cannot get out.

Kate plans to get more paintings from the school children, but they are all too good. As the school is about to show of the art to their pupil's adults, Kate decides to steal the paintings, and gets herself trapped in the headmaster's office.

After Alan's date goes from bad to worse, spending several hours shopping and then annoying her right-wing father, Alan finds himself trapped when he encounters a toilet that will not flush.