Eminent writer Robert Ringwald is over from the States to judge a book prize. While Al struggles to write an article on "what makes a classic", the crafty Ringwald has his sights set on seducing Davina.

Davina is worried that her brother-in-law, Roger, wants to start an affair with her. It's only after the unexpected arrival of Roger's son, Michael, and the liberal use of a class C narcotic that the truth is out.