When friends with a baby visit, the girls get broody.

Murray and Paul have a bet the former can't give up smoking and the latter can't give up sex.

Murray has a lot of questions to answer — who does the dog belong to? Why is he anxious that everyone should leave? And most importantly, why is there a naked woman in the living room?

The couples buy a car which may or may not be stolen. Murray teaches Paul to drive.

The girls set up the men to test their fidelity.

When the television breaks, the two couples decide that they can live without it. However, it's not long before withdrawal sets in.

Murray always takes Diana for granted, something that Paul is quick to point out. When Giles appears, Murray realises that he has competition and he starts to change his ways — he even contemplates the ultimate sacrifice.

It's finally happened, Murray is about to make an honest woman of Diana but he's regretting one thing — making Paul the Best Man. His worst fears are confirmed when Paul insists on turning up for the wedding in his birthday suit.