Emerald City is a 1987 play by the Australian playwright David Williamson, a satire about two entertainment industries: film and publishing.
They have three children, Penny, who has been frequenting a disco called Downmarket, Hannah, whose teachers say is depressed, and Sam, whom Colin fears Kate is encouraging to be gay.
Coastwatchers proves a ratings disaster, so Mike latches on to Colin for another project, a rip-off of Miami Vice set in Australia and loaded with Australianisms.
During this time, Colin becomes attracted to Mike's girlfriend, Helen Davey, but ultimately draws the line in the friendship and avoids cheating on his wife.
Ultimately, Kath Mitchell is nominated for the Booker Prize, and Kate accompanies her and Ian Wall to the awards ceremony, though she does not win.
The play takes many swipes at contemporary occurrences in the entertainment industry, such as Steven Spielberg's purchase of the Australian writer Thomas Keneally's novel, Schindler's Ark, which one character jokes will be made into a film in which the Jews are rescued by space aliens.
At one point, Mike sums up the "great Australian novel", Henry Handel Richardson's The Fortunes of Richard Mahony, as, "Doctor's marriage goes bad, he goes to the goldfields, gets gangrene and dies", to which Kate says, "I don't think your synopsis quite does the book justice."
Williamson and Denis Whitburn worked on a Second World War miniseries with the director Chris Thomson titled The Last Bastion, which ran on Network Ten.